Search Results: drinking in high school

I'm trying to figure out what is going on with one of my female friends younger sisters. is how I know this girl. I ran into her at her work the other day and she was hung over out of her mind from a party the night before , she was even trying to act like she had a cold , which I bought at first until I though about it more and realised there had been a lot of parties the night before. but like all of her pictures from weekends on her profile show her holding coolers and other alcoholic drinks. its clear she drinks a lot. her and her friends aren't even old enough to legally buy alcohol here so not sure where or how they get it so easily every weekend.
when I was that age I don't even remember drinking or would I have had any idea where to buy the stuff if you couldn't do so at store? there must be older teens selling to the high school kids or someones parent buys it for them.
it seem somewhat normal for a college aged girl to go out and party once she was living away from home and on campus and such but she's still living with her parents and it seems a little off when considering her past she seemed to be more into sports and somewhat of a model student. but now all she seems to do is drink with her friends every weekend