It would depend. Is she an adult? And not age-wise, but mentally wise? If I ascertained that she was an adult, then no, I would not get her a stud, but neither would I stand in her way. She would be, in my eyes, an adult ready to make her own decisions. Does that mean I have to help her? No. And the friends were prolly fearful of what the parents would say.... but who knows? Perhaps the parents would have thought the same way as the friends but the friends were just too chicken to ask... we simply do not know.
Again, for centuries people younger than this were considered adults.... why? Because of hardship and high mortality. My argument is simply that with the hardship and certain mortality coming his way for, we presume, years, then he probably had developed into what is analagous to my given example of "children" of different centuries.... an adult.
An adult is an adult is an adult. A certain age does not make an adult. History proves this. But your BS about trauma and 12 year olds is clouding any sensical discussion of this. We are talking about death/a 15 year old kid who prolly is able to make adult decisions/etc ... not trauma, not "hurt", not anything like the strawman that you built and that I just burned down.
I sometimes think the premise of the "Make a Wish" mentality is earthbound fear, whereas a reinforcement of faith in God's Heaven would be more helpful to the terminally ill children and their families.
Does death really mean that a person will "miss out" on all the good things? That nothing better awaits? That the "self" which wanted and had a single sexual experience before death is a more complete self than one who didn't? Will he now rest in peace? That the giver of the best things - the "wishes" - is a foundation of fellow humans with good intentions and money and power? (kinda like the government)