Oh good, a thread about "forced" alcohol consumption.
Cue the nerds talking about how they don't understand why anyone would drink alcohol (hint: they're not just doing it for the hangovers), they can't stand the taste of alcohol (protip: most people who drink dislike the taste; they're not drinking for taste), and they want to make fun of people who drink (spoiler alert: you should/will never be invited to parties).
Drugs, drinking, and sex can all cause very severe problems for you. People aren't generally so irrational as to do something IN ORDER to cause problems for themselves. All three of those things (some drugs aside) are possible to enjoy in a way that outweighs the problems. And while you certainly don't need to drink to have a good time, it certainly makes it easier.
On topic: If someone hands you a drink and you don't want to drink it, don't. Short of them holding you down and forcing it down your throat, you can just refuse even if it's socially awkward. And if they do hold you down, you should probably press charges.
