Bitcoin is a good source of income as we know that many people are subscribing in bitcoin. And many people are buying bitcoin so it is good to do bitcoin trading. You can also do investing to get a big income in return.
Unfortunately this is only known to a few people, they don't care about the bitcoin so assume same bitcoin with online payment system oblige us to deposit via a bank.
yes there is no doubt bitcoin is a best way of income, in fact we can use so many sources to get income from bitcoin. for example from gambling we can use bitcoin and can make money from there. we can also make money if we use btcoin for trading different altcoins, and we can also make money in we convert our fiat in to bitcoin and then hold it for a long time.