Rotational Play - Keeping the population in check!

I have 305 sims, 204 are couples, 7 more are in, um, alternative relationships. I play with aging off and most of them don't have kids. Of the few kids I've had in-game, most are adults and in their own houses. The family play is just not good at all and I don't go into the one house left with kids. I play whichever house I feel like and I usually redecorate or take them to a community lot to cause trouble.