I have a 15yo, she has never had alcohol as far as I know. I do not buy it for her, she doesn’t yet go to wild parties, any parties she does go to I check that parents are present and there is no alcohol.
I’ll go against the grain and would rather if she is going to drink she does it behind my back, as there is no way I’ll be condoning it at her age. My parents condoned it, I was bought all sorts of drinks from age 13, All it told me was that they didn’t care if I drank, so I drank ridiculous amounts as there was no consequences, and got myself into some bad situations. I distinctly remember my mum finding a 2L bottle of “cola” in my room at about 15, that honest to god must have been 75% bourbon. She just laughed.
I’ve also read a lot in recent years about alcohol on the developing teenage brain, and will probably never buy alcohol for under 18s at all, ever.
My general parenting philosophy is to to the exact opposite of what my parents did. Because I didn’t turn out so great.
Yes, I imagine they will experiment and do it behind my back at some point. But there will be consequences and hopefully deterrents.