To respond to your firat paragraph: This episode of Bluey helped me understand as a first time parent. Though this is less about personality and more about development. The mom with 9 or whatever kids really puts things into perspective.

It's funny because my own kid is literally Bluey. Super quick to do everything else, refuses to walk.

Your second and third paragraph: thank you for the advice, I'm anticipating that mine will become a terrorist. Already has learned to cry when told no, despite the fact that we've never caved in to it.