NC as outing. Asking for genuine advice.
Cut a long story short but try not to drip feed.
DD16 and her best friend (call her S) are inseparable. Spend most days together and all.weekends. have boyfriends but always put each other first.
S comes from a working class family and parents are both functioning alcoholics. S is a good kid but maybe a bit too.mature for her age? V opinionated and 'lefty political' which is catching with DD. Both attend rallies etc but S ability to judge before speaking often makes things awkward. I digress.
S family took DD away for long weekend last year so myself and DH reciprocated and have both girls plus my DS1 (DS2 at home with friends) away for long weekend.
Girls have been allowed to drink responsibly before when on holiday or at home on occasion. Last night S got so drunk at a local bar she fell over and couldn't get up and we had to ask for a golf cart to get her home.
I'm worried she's following in her parents footsteps and my DD will follow suit. She is suitably ashamed of herself today but I fear about this friendship. AIBU to cool this friendship when they return home?