We just turned down our 28 year old daughter who wanted a loan for school. She makes good money part-time working and seems to be turning into a professional student. Right now she's angry and we don't expect a Christmas card this year....oh well.
You did the right thing and you have our support. As Dave would say, “would you give a drunk a drink?” No matter how angry your daughter is, have a peaceful mind that you are not enabling her.
Sometimes you just have to take a tough stance. At that age school should be on the individual’s shoulder, not the parents. It is not so much a matter of money as it is helping a person grow up a bit.
You did the right thing, though. There comes a time when we have to demand that our kids stand on their own two feet. I imagine she will learn to appreciate that later.
We went through a rough time with our son, but he's a much better man for it and appreciates the hard stance we took at the time. (He didn't really grasp it until he had kids of his own.)