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.
I know this travelcard that accepts Visa payments. They are offering a seamless spending of fiat and cryptocurrency with their application. What I like about this one is that they don't ask for conversion fee whenever you are trying to pay in different currency like usd to ringgit, usd to hkd etc.
Another example is Lolli, a cashback system for online purchases that pays in Bitcoin.
Beware with cashback system they might not be the best deal you could have, like their partner shop is overpricing than the other and what you are getting as a cashback is just an illusion. Also try not to use a lot of these application, since it is an extension, cookie trail might confuse itself to the point that it can't track the online purchases.