SO, I don't often fly Canadian domestic, but when AC is half the price of UA, well....
So trying to board AC YVR-YYZ. Provide my FL DL for ID to the GA. It's rejected, only a passport or a Canadian DL will suffice, apparently.
Mrs. NY-FLA had preceded me down the jetbridge, carrying my passport (an artifact of carrying around vaccine proof cards which will undoubtedly fall out/become lost if I carry it.)
The GA was quite happy to chase her down the jetbridge to retrieve my US passport.
Makes me think, though... What on earth is the purpose of this check, clearly redundant to the one at security? Wouldn't be effective for checking against the no-fly list, could potentially be effective against resale of one person's ticket to another person, maybe sort of...
Also what does someone do who has neither a CDN DL or a passport on them? The GA, pressed, agreed that a Nexus Card would serve her purposes, but that's only a solution for a huge minority of cases.
Or does this have to be accepted as part of the dance to fly domestically in Canada?