We're Americans. If we practiced DBAD, pretty much everything would be different.

Of all our American flaws, "It's not illegal for me to be a dick and therefore I am going to be on" is perhaps the one we're proudest of. (Followed, perhaps, by "It's illegal for me to be a dick but you can't prove it beyond a reasonable doubt and that's as good as legal" and "It's illegal for me to be a dick but nobody is going to bother prosecuting therefore it's as good as legal.")

It would be great if we all practiced Don't Be A Dick. But for those who are most harmed by people being dicks, we need to figure out ways to protect them legally, because otherwise people will be a dick to them as hard as they possibly can. And every time you try, people will say "Nobody is being a dick to me therefore nobody needs to be protected."