Canada uses a hybrid system, like Britain. We started to metrify in the 70s and early 80s, and then--stopped.
Metric was still new to Canadians in 1974, when I was in grade 3. I remember this because I remember being given a measuring assignment in Math class. Our rulers were all metric--but the assignments themselves were in inches. So our teacher told us, essentially, to measure to the nearest centimetre.
Today, I seem to use metric for large, impersonal things, and Imperial for small, personal things. Long distances are in kilometres, temperature is in celsius, and milk and water come in litres. But a person's height and weight are in feet, inches, and pounds, and things get poured out in the kitchen in cups. I measure things in centimetres and metres, but I can switch to inches and feet, if it's easier. And the field in the Canadian Football League is still 110 yards long.
I understand most Imperial measurements, I think. Quarts and yards, for example, are just smaller versions of litres and metres. But there are some I don't understand at all. A "stone," for example. Or an ounce. Or temperatures in Fahrenheit. Or even a gallon.
And as every true Canadian knows, a case of twelve Imperial beers converts to fifty-six metric beers.