How long are your life stages?

There should have been an 'other' option. Personally, have aging off for eveyone.

I used to play on super short but have since started using the longer "normal" length lifespans.

Custom.
As long as it takes to learn toddler/child/whatever skills and complete at least one aspiration. Most of my sims are immortal, though, and won't age past young adult.
I will only ever turn on aging for NPCs if I want them to either be in the same life stage as my sims, or die of old age.

YA length on Long is now 112 days. If my Sim can't do it in that amount of time, it can't be done. ;)

I used to have it on Default Medium life span, but ever since the team increased their life spans and I used MCCC to fiddle with the in game time, it drags out too long for me. Its at Short for me now and its alot better for me.

aging off

Aging off for me as well. I age them up if/when I feel like I want them to move forward in their lives. I also play rotationally, with my own Sims occupying most residences in each map.

I play with aging off and age up accordingly. I'm interested in playing with Normal lifespan in the future though.