Hey all, little backstory. I'm in my 3rd semester of college, and my friend is a senior in high school. A few months or so ago, I'm scrolling through social media when I see they post that they're at a party. They're being very loud, and they're jumping up and down to music, something that is totally out of character for them. They were always the quiet type, especially when I saw them at school around other people.

I send them a text saying "Looks like fun haha", a couple hours later they reply with gibberish. I ask what they said and they just reply "I'm so drunk", and a picture of alcohol on a table. All I reply is "that's probably not the smartest thing you could have done." 

The next morning they ask what I meant. I just said that them getting drunk, especially at their age (16), isn't the smartest thing you could do. Automatically they got defensive, saying they had a good time and that they were with friends. They said that the alcohol let them unwind and have a good time.

I reply saying that it's good they had a good time, but alcohol shouldn't be the reason you had fun, and that they did something that they wouldn't do normally while sober. We basically went back and forth for an hour or so, them justifying it because they had fun, and me just saying it wasn't a smart thing.

Multiple times throughout the argument, they'd say "can we just ignore this", but then they would try to get the last word in, usually along the lines of "I'm still going to drink I don't care what you say," to which I'd respond to and start the argument again. It then evolved to them telling me that I was taking the easy way through life by going to college. Eventually, I had enough, and said that we should apologize to each other, and they said they had nothing to apologize for. I left it at that, and it's been months since we last spoke.

I never, throughout that entire conversation, say "you should not, or can not drink." All I said was "it wasn't a smart thing to do". It was simply just advice. I don't care if people drink, but it was just a mixture of their age as well as how they acted that worried me. They were with friends and they didn't drive home, and they assured me that they'd only drink around people they knew.

Was I out of line? I felt it wasn't really my business, and I sort of knew this person was stubborn, so telling them anything would probably not be effective anyways. I knew they weren't going to say "You know, you're right", but I figured it wouldn't hurt to just say something. 