Do you play with custom lifespans?

I play without mods, so I have to adjust the lifespans myself. Normal feels too short to me and long is just too long. I play long, but usually age babies after three days. When they get to toddlers I often switch aging to normal as I feel that's a suitable length for toddler play. Sometimes I just estimate when a week has passed and then age them up. For other life stages I age them up when I feel like it, really wish I could set my preferred lenght in game, because I'd like having a set amount of time instead of just deciding myself.