Gated communities give a false sense of security. The only time our house has ever been robbed was in a gated community in SoCal.
And 20 mph limit sight were posted, but research obeyed. People are humans and a gate isn’t going to magically turn them into decent people.
“Gated Community” is actually an advertisement for burglars and car thieves. They consist of high value targets.
So instead of instead of people acting responsible and lawfully we ignore their behavior and move into bunkers and hide.