Auto Shorter Teens

Description
This has been a long time coming.
Ever since the announcement of The Sims 4 and the realisation that Teens would be the same height as Adults I have hoped and dreamed that it would one day be possible to shorten them down with mods.

Mods were created to address this and I was overjoyed but then patches would break them only for them to never be updated.
Fantastic sliders were created to alter the heights of Sims but it all had to be done manually and then reset once a Sim aged past the Teen stage.

I wanted something that would work automatically on all Teens in the game whether played or not and return them to normal height once they passed the Teen stage.
Today I bring you just that!

Info
This mod is an amalgamation of my own work and that of several other wonderful creators used with their permission.
I would very much like to thank simmythesim for the initial early work into height sliders and a shorter Teen mod.
Luumia whos height sliders the modifiers in this mod come from.
NiveaSimsCC whos bone delta values were added to Luumia's modifiers to tweak the result more to my liking.
And CmarNYC for piecing together how to obtain the Instance values required to make this mod work.
Without the help of these wonderful creators I would not have been able to bring this to you today.

So, onto the details.
First of all this is NOT a slider or a body preset.
This mod overrides the Teen specific CAS Modifier Tuning XMLs for each of the occult types and adds in a new reference to the short height modifier.
This means that any Sim that is created as a Teen in CAS, or ages up to a Teen through normal gameplay should automatically be shorter than Adult Sims. It also means that once they age past the Teen stage they will return to the default height for an Adult Sim.
You don't need to do anything different to have this mod take affect on newly created or aged Teens.
Werewolf forms are NOT affected by this mod as they do not have their own Teen specific tuning to edit. Fairies will only automatically take on the shorter height in ther Human form.

It is important to note, however, that already existing Teens will NOT automatically become shorter upon installing this mod. There is a way around this though.
Open the cheat console and enter the cas.fulleditmode cheat. Now take the existing Teen Sim into CAS either through a mirror, dresser, or other method. Once in CAS you need to change the Sim's gender and then switch back for the shorter height to be applied. You can then exit CAS.
It appears that for Fairies you should also disable the appearance randomisation options under the dice icon under where Sims stand to make sure the game doesn't change their appearance when switching genders.

I haven't noticed any oddities when Teens interact with or carry Toddlers or small pets.
A side effect of this mod makes Teen portraits from the Relationships and Household Members panels appear lower in the frame when compared to Adults. If this bothers you, SimplyAnjuta has created a camera override mod to alter the zoom level for all portrait thumbnails ensuring shorter Teens don't get their faces cut off. It fixes a few other things too. Check it out.

I hope you all enjoy your (mostly) automatically shorter Teens!

Notes
As with all height related mods there will be some clipping of animations and certain interactions between Sims of different heights may not align correctly. Correcting those is outside the scope of this mod although I have tried to use values that reduce this.
Teens uploaded to the Gallery will be flagged as containing CC. Pointed out to me by Spiderses. I forgot to check Gallery usage.
This mod is, as far as I am aware and have tested, compatible with other height slider mods. This means you can alter the individual heights of Sims still, including Teens, if you like with the use of other CC sliders.
When creating a Sim and selecting a new body preset for a Teen they may reset to Adult height. To fix this simply swap their gender and then swap back again. Swapping frames does not work in this situation.
On one occassion during testing, after editing a pre-existing Teen their left hand went missing after exiting CAS. After a few minutes of in-game time the hand returned on its own.
This mod also corrects an EA error where the tuning for Teen Spellcasters incorrectly classifies them as Vampires instead.

Conflicts
This mod overrides the following resources and will conflict with any other mod that also does so:
Known conflicts:
The mod will conflict with CaS Modifiers bugfix: Aging & Randomization by Shimrod101 although that mod may no longer work anyway since the other modifiers used in it seem to have been removed from the game files.
It will also conflict with Pointy Ears Unlocked - All Ages by Khitsune.
Also conflicts with CAS Mod: Presets Selection for Randomized Sims by SimplyAnjuta. Specifically the file for altering the body presets of Sims. The brows, beards, and skintone files are still safe to use.

10th August 2025
Updated so that Spellcasters are again, correctly affected on age up from Child.

22nd July 2025
Updated the Shorter version to include the correct settings as it was using the Shortest version values. Thanks to Kodi on Patreon for pointing it out.
15th July 2025
Updated to include Fairies!
4th July 2025
Updated to include new values for the fairy ears. As pointy ears now appear to be supported for all Sims in the game by default, I will no longer be offering the ear unlocker versions. I have also removed the tunings for all ages other than Teens. If people notice this causing old issues to return, I will look at adding them back.
14th November 2022
Another update in an attempt to prevent issues that some players have reported where Sims will shrink down to the modified Teen height once reaching the Adult stage. The mod now includes the tunings for the Adult and Elder life stages. This update is currently only for the versions without the pointed ears unlocker.
13th July 2022
A small update to reflect changes made to the Young Adult tuning with the Werewolves patch. Sadly, due to the way the Sims Team have set up the tuning this time, it is not possible to make Teens shorter while in their wolf form. They should still be shorter while in human form though.
12th March 2021
In an attempt to address the issue where Teens will not get taller when aging to Young Adults for some players, I have recreated the mod with fresh tuning and now included the Young Adult modifier tunings with minor alterations as well.
26th May 2020
Thanks to the feedback from cedrigo I have made it so that Teens necks will now scale down to better suit the smaller propotions. This will affect all Sims as there are no seperate modifiers for the different gender options.
DClick mentioned that this mod conflicts with Khitsule's Pointy Ears Unlocker and so I have added a new version which should mean you can keep both files in your game and still have access to the pointy ears modifiers for Teens.
Lastly, FullMetalAlchemist requested a version that uses the same height as NiveaSimsCC's Teen Preset. There are two versions of this. One with the pointed ears unlocked and one without.
If you spot anything iffy please let me know. I had to edit a lot of numerical values for all the new versions and my eyes might have missed something.

Additional Credits:
Waffle,
MorphMaker,
Sims4Studio,
s4pe.