>also the pin is verified each Transaction unlike with receipt signatures

At least in my experience this has increased a great deal more in the US in recent years.

Also, nearly everywhere in Canada, the interac system really has it together up here.

It helps having one debit card system to support. The US has like 7 and I couldn't begin to name most of them (Interlink is one of them, I think Maestro is another)

I don't really buy that though. The banks may have an easy time talking to other Canadian banks but they also need to talk with American banks and Canadian PoS terminals often support US debit cards. Perhaps Euro PoS terminals just refuse to work with US debit cards but Canada gets a lot of those American tourist dollars and doesn't want to make it hard for you to spend your money up here.

> Canadian PoS terminals often support US debit cards.

Unless something changed in the past few years, this is not the case. US debit cards are accepted through Visa or Mastercard's payment network which doesn't require a PIN (this is what it means when you process as credit in the US). Those transactions do not use the debit payment network. https://en.wikipedia.org/wiki/Interlink_(interbank_network).

EDIT: I will add that while POS systems don't have a way to do this up there, ATM's with their notoriously high fees do support cash access through a US debit card.