Indeed. Children and not "little adults". They are emotionally and intellectually immature, literally with the brain and body growing into to the capabilities of an adult.

And if good habits are not instilled, they will have a difficult life ahead of them. It's far easier to learn those habits when young, than to try to independently course correct as an adult.

Not coercing a child towards correct behaviours, is doing them a great disservice. In some circumstances, it's child abuse to not coerce those bahaviours.