No, in Argentina for example, they’re supposed to hand you the receipt, otherwise they could get in trouble.

I think it’s because there’s a lot of selling off the books

Right, they can’t refuse issuing a ticket because you don’t want to provide an email.

In some countries receiving the ticket is not optional even for the customer 😭

The receipt is rarely optional for the store though, if you ask for a print out they would have to do it