Allegedly, Wero, coming from the banks of the EU, should in the next year or two, unite all the similar national systems across Europe in to one, I guess kind of like UnionPay.
https://www.interac.ca/en/content/news/interac-collaborates-...
Just recently I tried to pay at a parking kiosk with my dual-network card, and it repeatedly failed with a generic error. So I had to use my credit card (which I only got for this kind of situation) instead.
So often when trying to pay with a CC number, only a credit card will work. It's pretty dumb.
Personally I use credit for anything major, for the protections.
People who have poor credit can use debit if they can’t get a credit card, or want to make a purchase above their limit.
Yes, consumer protection regulations (and benefits) are better on credit cards (at least in the US, I don't know about other countries).
it's not really anything technical that they "have trouble with", most gateways launched visa debit as an "opt-in" payment method for existing merchants, so if the merchant did not specifically enable it it never got enabled. newer merchant accounts have it enabled by default, so this should sort of work itself out over time. but yes, i don't understand why they made merchants opt in, it's pretty dumb.
20 years ago the card type caused confusion going abroad, especially US, but also some European countries that had not yet introduced the same card type. Some merchants were confused about the extra prompt about which card to use before the customer enters the pin.
But it has worked fine 99% of exotic places. I think the 3D secure caused much more trouble when shopping online when it was introduced compared to the choice of using either the debit vs credit variant online.
https://payments.ca/sites/default/files/PaymentsCanada_Canad... page 7
EDIT: In the past few years, many Canadian banks have started issuing dual-network debit cards that bear both Visa and Interac logos (sometimes MasterCard and Interac). These cards use the Interac network in Canada, but can also be used online and abroad using the second network. I just wanted to mention it for people who may be curious about the apparent shift in debit card networks.