Sorrythings are so hard for you - teenagers have the selfish gene inbuilt and until they one day have to fend for themselves in the real world, they don't get it. Sometimes I think it would be great if we start of mature and go backwards in life then start off life remembering what it was like to be older!
As for the youth allowance, if she knows she can get her hands on it, well thats it, don't provide one cent for anything that wants personally and only fork out for school supplies etc.