S.L.
According to what you wrote, the uncle specified that it was to be for fun. So, it sounds like she's honoring his wishes! It would be nice if she didn't squander it on other people, but she probably wouldn't have fun if they didn't go with her. I guess she's keeping the economy rolling by spending. That's how I would look at it.
I am really conservative with money, but that's how I feel about this particular situation.