Compare it to an over-protective parent. When the child is ready to leave home, the parent has to let go, which means, s/he has to change some years of behavior patterns attached to the child. No, it's not easy, but you can do it.
You know she cannot do any of this stuff she is fantasizing about.....but you have to get out of her way and let her find out for herself. Stop trying to do it for her. Break that pattern. The harder it is now, the quicker she'll see that she cannot make it on her own, working and living in a big city with big expenses.
It is not about what you feel should work in your M. It is about doing the work that gets the right results. Do what works!
