Checks still in use in Canada as well. I had a person today tell me they had 3 checks stolen and cashed and my response was “people still use checks?”.
That's leaving out the "automatic bill pay" function of my bank's web site, which, for most payees, at the end of the day results in physical paper checks being printed and sent in envelopes.
That varies a lot by jurisdiction. I'm 50 and I haven't written a single check in my entire life. (Sweden.)