DS is 16, year 12.
He’s very bright, very sporty (plays and trains 2 regular sports) enjoys playing an instrument and going to Explorer Scouts. He’s got a great bunch of male and female friends and is popular at school.
Until now he’s been very, very easy to parent.
Twice now he has been out in the evening with different groups of friends and drank to excess - to the point that he’s loosing things and being sick. He’s not sticking to what we agree before he goes out (take 2 cans to a friends and stick to soft drinks when he goes out after that), or about not walking home by himself. He is also lying to us about how much he has drunk.
We drink socially at home with meals etc, and he rarely has taken us up on the offer. It’s never been forbidden but he’s not been interested which is fine. His older sibling is not interested at all in drinking.
We’re worried about how vulnerable he’s making himself as a result of this, as well as his lying. I’m trying to talk calmly with him but he seems so blasé. We can ground him for a while but I suspect this will just happen again the next time he goes out.
How have other people dealt with this?