Should parents continue to support all expenses after their child have on-campus job?

Well, I just had a whopper request from my daughter. She’s on an internship out of the country and asked if she could go skydiving! Over my dead body!! While I do appreciate her asking, there is no way I am blessing that, or giving her $ to do so. She can use her own money for a discretionary expense like that if it’s that important to her. So when she asked me for the second time today and follows up with “everyone is doing it”, I said back, I’m not blessing it, and I’m not paying it. If you want to do it, you’re old enough to do it and you have your own $ to pay for it. (It’s $500+ by the way). I asked if her roommate is going and she said she is thinking about it but isn’t telling her parents until after if she does. I guess at least I’m grateful mine asked, but it’s probably because she didn’t want to spend her own $ to do it, lol. Kids!!