You clearly don’t live in Canada. Imperial units are very common for measurements. You ask nearly anyone, old or young, their height or weight, you’re getting an answer in feet/inches or pounds respectively.

Tons of baking is done using cups, tsp, tbsp etc.

Golfers use yards.

I’m sure there are more examples I am forgetting, but you get the idea. It’s not just people who grew up before 1985. It’s everyone.