Wtf is the point of this. Even if they wanted to save on labor costs of wait staff and everything why not just use your own card instead of trading it for a temporary card.
It’s like this pizza place I went to recently. They had a little arcade so I went to put some quarters in and realized I had to go buy tokens at a machine first. It wasn’t Dave and Busters or anything, just a hole in the wall with a few games in a corner. I didn’t buy any tokens. Same with laundromats that now want you to buy tokens ahead of time.
There isn’t a single business anymore that isn’t trying to just blatantly scam you out of your money. They used to at least be more subtle about it.