I'm really just starting to explore my kid age. I know for sure I'm firmly in the kid space, and don't vibe with any age under like 3, but for what it's worth I'm not potty trained in my little space.
I'm likely coming out in age between 3-6 but likely with a desire to do things with the middles sometimes. Honesty that how I was as an actual child as well.
I recently bought a few onesies, a paci, and a sippy cup to explore some ages but they have not arrived yet. The onesies are less for little space and more to help hide my diaper if I decide to wear publicly, but I'm hoping to explore some other kid clothes soonish.