I think it's inertia. A lot of people have been using MySQL for 10+ years and it's still Good Enough. It takes them an extra 10 minutes to figure out how authen

I think it's inertia. A lot of people have been using MySQL for 10+ years and it's still Good Enough. It takes them an extra 10 minutes to figure out how authentication or permissions work in postgres, and that extra 10 minutes isn't worth it.