That's completely fair and absolutely true, I'm just not sure we can necessarily attribute this motive to the O.P. without more information.
I can imagine that people who enjoy their drinking habits would like to know if they can continue. My advice would be to go to some social events/ bar reviews initially with the thought of moderation in mind, just so you can meet people. A few months in you'll figure out how much free time you have and you can determine then how you'd like to spend it- drinking, knitting, whatever. That being said, this will be harder than undergrad, so it would be logical to assume that less drinking might be helpful.