Travala was a big step in the right direction, unfortunately it really hasn't worked out all that well. Eventually it may be possible to pay for everything with stable coins but that is many years off. If we could convince a large company like Amazon to accept them it would be huge, but not likely anytime soon. Someone with enough capital could build a company comparable to Amazon that accepts stable coins, the problem is that so few in the world population use them.
We really need to grow our base into the mainstream population for this to become a reality.