It's the other way around. Bitcoin pays miners who keep the network running. It does so by creating bitcoins. Its not peoples money that is used to pay them its indirectly trough inflation. No one cares about that because price gains have been way higher than inflation loses. Also the upper hard cap of 21MM makes people think inflation doesn't exist. Yet it of course exists until the block reward is actually zero. In other words the price has to go up forever doubling at lest every 4 years on average to cover its own running cost with the simultaneously halving reward. It's obviously a scheme that will collapse, it's just designed to possibly last many decades.