So, does the retail establishment keep the consumer there for 15 minutes while the transaction is verified to avoid that whole double-spend issue? Consumers kn

So, does the retail establishment keep the consumer there for 15 minutes while the transaction is verified to avoid that whole double-spend issue? Consumers know to treat gift cards like cash (they lose em, they lose everything) and that they have no protections. Credit cards and debit cards are a very different thing. And they're backed by these things called banks which are regulated and insured, as opposed to bitcoins which some people keep in unregulated exchanges that can lose nearly 7% of the entire bitcoin currency without anyone noticing.