is it possible to make an income from sports betting?
Possible but it depends as well. How deep is your knowledge of particular sports that you are going to bet? And then the risk factor as well, maybe there are days that you become so 'unlucky' that you don't hit your bet, so there's no income for you. So it's like trading a well, sometimes to win, and sometimes to loss. So if this is the way to bring food for your family in the table, then I would advise to look for better options to generate a regular income.
Good point here a knowledge in soccer prediction and analysis can earn an income for a bettor of course it has own risk however in the long run someone can earn a reasonable amount of bucks if you know your onions well although you have to strictly follow some leagues and select teams that can guarantee wins consistently although its not always going to be win-win situation at all time there are losing bets however with a strict money management profit is guaranteed.