Have NC for this one...
DS is15 ( Yr 11). 16 in summer. He declared last night that he is going to stay with another boy in his year at school on Friday night. I said that was fine, but that I would need the address and phone number of his friend's parents. Not that I necessarily want to contact them (though would reserve the right to), but just in case.
Context: Said classmate lives 200 miles from us. DS has been at boarding school 250 miles away since he was 13. Competent traveller (journey to school involves three changes of train and crossing London; he has been doing this alone since he was 14). He is sometimes quite mature, and other times a complete numpty. He also has a somewhat elastic relationship with the truth (though never, yet, about anything important - or not to my knowledge, at any rate).
He says I am being ridiculous to want the parents' details, and that he will be able to leave home in a couple of months' time (though I did point out that being independent at 16 would very decidedly mean that, and would not involve asking your mother for money for train fares to stay with your pals).
AIBU to insist? Quite happy to be told so if I am. He is my oldest, so this is a new one for me...