Meh, as long as parents know there will be bad language in the zone.
For a lot, it's probably one of those things they want to try themselves without kids, to see if they find it acceptable.
I also don't really want to tone down, change the way we do things or get evil glares because there are kids around.
So yeah, I'd encourage parents to try it first, then brings their kids. Everyone is nice enough, so it'll be acceptable to some but perhaps not to others.
As for what the zone is/should be: this Taradale muppets thought we were sevens piss up for sure, which is completely untrue and they looked so obviously out of place it was embarrassing. But at the same time, we have to be careful not to go too far the other way to being completely family friendly, that we perhaps lose our edge. We need to find that sweet spot in between.