You can easily skip toddlerhood. This thread is about a family type ep, and not having toddler screws up the dynamics of aging. But I'll add the puberty and stuff, since the fact that past games had them.
In addition to what you said,I would like a stage between toddler and child. To me it always felt a bit odd in ts2 and ts3 the jump from dependent wobbly tot to independent 8 year old. This is how I think the stages before young adult should be Stage 1: Baby Stage 2: Toddler (18 months to 2 years 11 months) Stage 3:…