If they get some crypto for stuff they do anyway that's a much better way of introducing crypto / Bitcoin to average people.
and who is going to pay you for things you already do? and what is he benefit in it for them to pay you?!
what you are saying sounds more like one of those micropayment jobs you usually see advertised on the internet which are a complete waste of time and could even infect your computer if you follow their instructions including visiting random sites! they advertise it like "things you already do" then you see you have to do mundane tasks for long hours to make a cent!
One of the examples is Wirex, where you get a cashback for all your purchases with the credit / debit card in Bitcoin. There are other credit cards with cashback systems, but also a lot of credit cards without.
Another example is Lolli, a cashback system for online purchases that pays in Bitcoin.
Microtasks could be a thing, but there you have to explicitly do something you probably wouldn't otherwise do.
But in general the fact that I can't come up with more examples is the precise reason why I'm posting this question ;-)