I like to play families in sims because I like combining different premade sims into new characters of my own to play with :)
Its just more interesting to me to play say Vlads daughter than just any random blank slate of a sim I could create in CAS
That said I too keep my game strictly auto aging off because I really like to choose when sims age up myself rather than be rushed by particular number of simdays
and in some cases sims are stuck on same lifestages what seems like eternity cause I just really like that particular lifestage for particular sim 😂
or I might be inspired to write them dead for reason or another before their natural passing time 😅
As for what comes to IRL, would rather meet my morbid end than have kids 💀 Deadly terrified of those munchkin.
