Something I've been gradually noticing over the years of playing with Sims 4 toddlers is that... I wish they were younger. Like in TS2 and 3. I know a lot of people prefer these older ones because ...
I already struggle with toddlers enough as is lol - I can't imagine having them even MORE dependent. That said, I would love to see 100 baby challenges with a more dependent life stage. I can always age up my toddlers whenever.