When does a parent’s rights over their child’s body end?

[parochial boy]

I mean yeah, when say, a 4 year old, requires a dangerous but potentially life saving medical intervention you would still be required to get their parents' consent. I dare say most people would agree that is probably rightly so.

[parochial boy]

Ok, so a vaguely pedantic point where the state is consenting in lieu of parents in what is a pretty reasonable circumstance where the parents are unwilling or unable to fulfil their role.

It still doesn't change the point that quite clearly someone is consenting on behalf of the child. Or, more fundamentally, it accepts that parent's have a right over their child's body even if this can be overriden in certain circumstances. All it really does is support the original point that my argument implied, which is there isn't a single theoretical moment where you can say a parent's right has ended because it depends on a lot of different factors or circumstances