Mani, at worst tell her to take a year out, get some work experience and a few savings behind her. Then when she goes to Uni she will have a better understandin of teh type of crappy jobs there are and she will want to work that extra bit so she doesn't have to go back to one!
Tell her to get onto ucas and I believe 'The Telegraph' have teh full UCAS clearing list so she may be able to find somewhere that has places