The way you’re using “in charge of their minor children” is weird to me. As if minor children are mindless automatons until reaching adulthood. We’re not talking about medical decisions here. We’re talking about the name of an individual. But even more fundamentally, we’re talking about human rights for a child. What rights do children have? At all?
My view of raising children as a parent having raised two to full adulthood, is that my responsibility is to increase their responsibility gradually until when they leave home, they are fully responsible for themselves.* What you’re talking about sounds like the children get zero responsibility unless their merciful parents grant them an iota or two.
Again, we’re not talking about medical decisions here.
* Note I consider myself rather conservative when it comes to parenting. For example, I told my daughter that she could get pierced ears, but that under no circumstances was she allowed to pierce any other part of her body until she was 18. And zero tolerance for tattoos of any sort until she was 18. I didn’t want her to make any basically irreversible decisions that she would regret later on.