[WildTurkey]

No. That is not what I said. I quite clearly stated that the Age of Majority, where you could make those decisions for yourself, can be set at the State level. It is still up to the parents/legal guardian to ascertain which behaviors to allow/disallow.

This is still confusing. The state says you reach adulthood, say at 21. Does this mean that a parent can still deny the child certain behaviors even when he is older than 21?

[Dead Corpse]

The state says you reach adulthood, say at 21. Does this mean that a parent can still deny the child certain behaviors even when he is older than 21?

If the parent cedes the Right to make such a determination by allowing the State to set that age... then no. The parent could not deny such behaviors above said age. Unless of course the newly minted "adult" progeny entered freely into a contractual obligation with their parent. That is a completely different conversation.