Hey there, I set normal Lifespan for Sims, but change adult stage to 28 days, which is reasonable for me, as they can complete their LTWs and have families, and 21 days were to short considering yo...
I have my settings for Epic lifespan and I extend each stage as much as I can to make it more realistic, at least to me(50 something days as a baby seems way more realistic than just 3)