What other ways do you know to receive / earn Bitcoin for everyday stuff outside of the crypto world that could bring Bitcoin and other crypto directly to users for them to spend?
The list of people that could earn bitcoin just by doing what they are supposed to do anyway goes on and on, best examples are accountants consukting on fund managements, lawyers specializing in blockchain and crypto law, stock exchange brokers consulting crypto related stuff and such. They could earn whenever they are since its easy to get oaid with bitcoin rather that traditional way of payment but time consuming.
In terms of spreading bitcoin and getting non crypto users into using it, edicating the masses about it's advantage and how profitable bitcoin is could be a way or educate and persuade people to study crypto related things so they could offer services to businesses that needs blockchain and crypto expertise.