B.G.
I had my daughter in dance class when she was 4. She did great and then for 3 weeks in a row we would get there and she wouldn't go in class. Or would go in but not listen and then come back out after about 10 minutes. I pulled her out and told her that Mommy spends the family money on her dance class and if she isn't going to go every week then I won't pay. She is now 5-1/2 and wants to start again. I told her the same thing...I'm happy to spend the family money on her dance class if she will go every week and be a good listener. If not, I will pull her again.
I think she needs to know that money doesn't grow on trees and it's wasteful to pay for something that she isn't dedicated to. I'm not going to force her but I'm not going to allow her to waste the family money either.
Good luck!