You can only earn money with cryptocurrencies by mining them or working on paid-to-post websites if you don't already have any residual income. This will assist you in making cryptocurrency investments.
With crypto you can earn alot of money mostly now that the dollars has rise people who are wise will make alot of money but I beleive that there is no way which you can start the business without enough capital.
You can start posting on forum accumudate some money when you reach that amount that can get you started then you can begin
Trading and investment is on the way out , I think it is a generally way people of different countries could make money with cryptocurrency , it is not only for a specific region.
The only way I know you can make a residual income with crypto currency without buying any form of coin is by working on forum sites , or as a freelancing while earning crypto currency in return ,