Well, I stick with what I said. The law has, by its nature, to deal with people as a group. It can't manage to deal with people on the basis their experience, wisdom etc. So I think it reasonable that minors should be protected. Sure, some children mature earlier than others but, as I say, the Law has to put in a limit and that's what it has done in defining minors.
As for adults who want to enjoy picture of children forced to do 'things' well, I think they are sick. I have no sympathy for them at all.