Well said. I'll drink a beer in PJM while watching a softball game in the bleachers, or even in the north field in the grass, but it wouldn't occur to me to go over to the playground and tip one back. Parks are shared spaces for everyone, not just families, and in a place where people gather to be with other people, there seems to be a natural division between the groups. It's likely that those families will even have a couple of beers or a bottle of wine. I think the person you're responding to thinks that it's automatically going to devolve into a frat house hellscape with people doing keg stands. The reality is quite a bit different.