DD is 16 and her friend is having an end of GCSE's party. Friends mum is allowing them to have alcohol, but she is sensible so I am sure it wont be gallons of the stuff. Even so I have said that DD is to have no more than 3 drinks on the basis that she will probably have 4, so if I say 4 she will have 5....!
I am happy with this but due to a couple of raised eyebrows after I mentioned it to friends, wondering what others would do.