Like it's their ~European~ pride or whatever and so White Americans and White Canadians want to be part of that. Also they don't want to change this outdated custom because they deem it as part of their heritage. That's why Australia, New Zealand, and some former Spanish colonies still have it but they have it reversed because they are in the Southern hemisphere. It's like a White hierarchy thing to show how ~unique~ and ~complex~ they are with their times (when it's actually retarded). Note many countries experimented with it but never adopted it. They saw the White Westerners doing it and they followed suit, assuming it must be good and superior. But then they never adopted it because they realised how dumb it was.