I’m not talking about being dicks to people. You miss the point. The point is there is a subculture within all the skateboarders there are that is actually legit about the sport. An identifiable group B in the greater group A. Gatekeeping need not anything to do with it. The skills and amount of time required especially as an adult do enough to demark this group.

Likewise with drinking. There are subsets of drinkers. The ones passing 40s around in a public park aren’t who you see in the ad material. The alcohol industry lobbyists would rather this subset not be highlighted at all in fact because it paints the rest of the industry as unsavory.