I have, and they quite understand that there is an element of trust imposed in a gambling house wherein no physical location is present.

I have reiterated this to my older colleague in the past and told him that if he were to play in a crypto gambling casino, checj whether the games are provably-fair, else he would get ripped off of his money. That guy never touched a single online casino though was keen on learning how a provably-fair gambling game works. He may not have grasped the idea of hashes and checking it but at the least, he didn't impose that trust is the only thing he needs whenever playing for an online gambling casino

Provable fairness is something you won't see on traditional casinos and you can't tell whether a game is rigged. Nonetheless, people flock and lose money there because it is where most people are playing plus the fact that some are accredited by the government, so their notion that they are not going to get ripped off is somewhat false.