Ethereum has had a couple of reversible payment systems built over the years, but nobody used them. Non-reversible, immediate, guaranteed transactions are just more convenient outside of a few edge cases
As kind of an outsider to a lot of things payment and crypto, just a normal consumer, I feel like this is a scenario where you don't know you're an edge case until it's too late.
"A few edge cases" including the fact that a sizeable chunk of the population will go through extremely convoluted means to steal from you, especially in the case of non-reversible, immediate, and guaranteed transactions?