I have a friend whose my age that is 26, ones I had a casual chat with her brother who is 17, and while talking generally he asked that do I drink and I said yes occasionally which was an honest answer and it didn't cross my mind at that moment that he is a teen and I should be careful in deciding what to tell him and what not. Today ge returned back... and ge had consumed alcohol... my friend got worried scolded him and in reply he replied that your friend drinks too... yet she did try to handle the situation by telling that she would tell uncle about it but still no effect... he is nit afraid... although he dud say he won't do it again but she is bot sure as going by his expressions. Please help how to handle the situation.

What is the legal age for drinking? That's what matters, not if a sibling's (legal, of age) friend drinks.

Its really not your situation to handle. A 17 year old is capable of choosing his own path. All teenagers learn when they choose something, there could be positive or negative consequences. It's a part of growing up. It's there family so let them handle it. Wait to worry about something when something big comes along.

What would be your suggestion if I were his sister..?

First off you're not his sister and this has nothing to do with you. He's 17, capable of making decisions, and yes some of those decisions will be bad decisions. Some of those bad decisions will come with consequences and hopefully he will learn from those consequences. The sister threatening to tell the Uncle and not following through is useless. If the 17 year old is old enough to choose to drink, then he's old enough to deal with the Uncle knowing. Whatever consequences come from that, so be it. Family secrets are usually never the best way to handle issues.

I'd tell either tell the uncle like she said she was going to or leave it alone. I'd also tell her it's not my decision or advice to give. That is between she and her family. You tell her the wrong thing then she's mad at you.

It's none of your business.