Betting can never be a full-fledged income source. After all it's a gambling and the risk factor is very high. it is important that the business we do for our full time earning should have security to provide at least minimum amount of income.Yes it is very common thing to see people lose money in betting than making money in betting. I can say that it's only a select few that an actually say that they make money playing bets be it games live it casino types of betting