It is the same in Canada [1] yet I frequently see beer sold in "US pints" over here. I assume they do it so they can advertise cheaper prices (the amount being smaller). Some places will write the glass size in ounces, but some won't.

It is one of my pet peeves for sure.

[1]: https://ised-isde.canada.ca/site/measurement-canada/en/buyin...

Also Canadian. I don't often see "pint" on the menu, usually something like "16oz." Evidently restaurateurs and bar owners are wise to the law. Though I am pleased when I see "20oz" on the menu!

I kind of understand the logic by not serving 20oz and saying "pint". Customers might avoid a place because their "pints are more expensive", when in reality that place is also serving them 4oz of extra beer. A bit like the classic 1/3 lb cheeseburger being "smaller"[1].

Annoyingly, I do find that servers will often refer to their larger size beer as "pint" regardless of whatever the menu says.

[1]: https://en.wikipedia.org/wiki/Third-pound_burger#Marketing_f...