We are going on a UK break in summer and have agreed our sons girlfriend can come. They are 17/18, my son works, the GF doesn't. I don't know what to say about the financial side. We don't want anything for the holiday. But we do like to eat out on occasion and that can get expensive. My hubby is generous but has a pet hate for wasted food and being expected to pick up bills. My son is asking what's happening financially. I do not want to ever quibble over a bill, nor do I want them to not be able to afford to join us. But I do want them to make some gesture. Anyone any ideas for getting the balance right?