I wouldn't use it.
It would be centralized, not truestless, transactions could be reversed and it could not be used worldwide, so what's the point?
You might as well just use FIAT then, there are no benefits for using crypto debit cards if you already have a bank account and a card. It would essentially be just an overcomplicated crypto>FIAT trading platform for users who intentionally give up all the major benefits of crypto.
Cool. Some people have told us that they want to use those cards to quickly liquidate crypto into fiat (even if it comes with a slightly higher fee) since it sometimes takes days or weeks to get fiat out from an exchange. Does that make any sense to you?