The tone of the GP and your comment, and wanting to drink for the buzz, are all arguably a little immature. But regardless: Maturity has nothing to do with age.

The tone of the GP and your comment, and wanting to drink for the buzz, are all arguably a little immature. But regardless: Maturity has nothing to do with age. Regarding opinions: You're not defending the GP when you say "many". The GP implied "all" (or close to it). The GP was in fact overstepping the statement of opinion, whereas you are not.