No, it doesn't bother me. Many of the sims I've townified come from larger families and I just ran out of story ideas or potential partners. I like it because it keeps them integrated into the hood. Playables can invite Aunt Josie to all the family birthday parties, all the friends she grew up with can keep in touch, and I can age her up to elder with her contemporaries one day and probably move her into a retirement home, but I don't actually have to play her in rotation.

"How do you keep your population under control?"

Judgement day. SimGod (me) shall murder Sims who are deemed unnecessary. But their death depends on how they lived. The Pool ladder is a fate worse than fire, sickness, shock or cowplant. Only the truly vile of Sims get the pool ladder.