I can say yes because some people who do trading earn money from doing it,  even though the income that you may have from trading is no stable it can still be an occupation, even though cryptocurrency is not yet here, trading is already there because some are already trading in a stock market and some people already chose to trade than staying on their career, the same things happen on those who trade in cryptocurrency.
 That is also what was my friend told m about trading, he told me as well that it is better to gamble as you can have a 50% chance of winning compared to day trading where you will only have a 10-20% chance of winning, I don't know if this is true or not or this is only for the beginners of the day trading.