In Canada, the Government's Code of Conduct for Credit and Debit Cards requires that card issuers offer a choice. You will find almost every single top-tier card (Visa Infinite or Mastercard World or World Elite) has a lower level version of itself. This is why you'll find CIBC has an Aerogold Visa and an Aerogold Visa Infinite that are virtually identical. Same with RBC's Avion Platinum Visa and Avion Visa Infinite. Same with Capital One's Aspire range, and so on and so on.

There are a few exceptions but those exceptions mostly deal with cards that existed before the Code of Conduct came into force.

The idea is that the banks cannot force a premium card on a customer who does not want that premium card. So, if the Card Issuer wants to upgrade their product to World (and thus bring in much higher interchange fees from merchants) they must also offer an alternative to existing cardholders who do not want the premium product.