There is something to add to this, people have become rich because of bitcoin and it's not a surprise, but what I consider risky is the salary, if someone gets the salary in bitcoin then he is risking 100% of his income in bitcoin, but if he received in bitcoin and sell then it's the same as receiving in cash/fiat. Besides this risk there is also the good part that bitcoin price can go higher and he may get "extra" salaries at the end of the year.