Yes it’s possible, but I completely understand where your parents are coming from. The vast majority of students do drink at some point during their residential college years. Drinking at home first allows you to know your limits and whatnot.
I’m not saying this will be you, but lots of students don’t think they’ll ever drink and then they do. If you do choose to drink, make sure the first few times are in a safe place with a few people you trust.