Thank you for your response, which brings something else to mind.
Not long ago, I came across some encouraging news for people who want to board aircraft in wheelchairs. A certification process is under way for certain wheelchairs that could fit on aircraft.
That said, I was surprised to see that this certification process is carried out in the United States, but that Canada would implement the process only if the United States decided it were the right step. I wonder whether it's normal for Canada to constantly lag behind the United States or neighbouring states in terms of legislation.