Hi OP! Congrats. It’s a big deal to be accepted and I’m sure you worked even harder to get a spot as an international applicant. My son goes to Brown and he’s the most painfully normal kid. He’s definitely not a hippy and based on roommates and friends he’s made, they’re not hippies. I’ve been there during family weekend. just walking around campus and having attended a public school that is all about Greek systems and growing up in a vey progressive state, I can tell you that students at Brown ain’t whatever they’re described as—hippies, MJ smokers, etc.
I’m sure alcohol and weed is available but you can choose not to take them. No one forces you to drink or smoke any of it. I would say it’s probably like the environment at any other school, from Berkeley to Virginia. You can request a substance-free residence hall if you wish.
These should be the least of the reasons not to attend Brown. If you have any other concerns, let us know and we will try our best to help answer your questions.