It’s strange here in the US too. I don’t know anyone that has a problem with that. That kind of puritanical attitude about drinking is not the prevailing sentiment here. Sure, my friends and I aren’t getting plastered at BBQ’s like we did in college, but it’s not like we aren’t having some beers at a cookout just because half of us have kids now. It’s just a vocal religious minority making a lot of noise. Don’t get me wrong, this country does have a different, more uptight, relationship with alcohol than Europe, but it’s not nearly as extreme as it may appear online and in media.
It does happen though. My wife’s grandmother was an alcohol abolitionist. We’re not talking the 1800s here, I’m not that old. She died in the 2000s. But she was super religious and was part of a temperance movement.
Anyway, once she died, the beer and wine started coming out at family gatherings and they have not turned into raucous affairs. The kids at the gatherings seem to be doing fine.