Like, I'm almost 50, and everyone my age says this stuff?

Seriously, I would say the age divide is closer to 60 or 65 for the usages you're describing, in the USA. But I remember in the past, noticing that Canadians spoke a lot more "cleanly." So maybe it just takes 20 years for our slang to work its way north.

I did notice that when I retired from practicing law and quit hanging out with so many lawyers, I definitely had to clean up my language. It's like whenever we were in casual conversation, we got the courtroom behavior out of our system by having every other word be "f***." It didn't take long to find out that that kind of language isn't considered acceptable among non-lawyers.