If he calls it a business,then it can be a business.I am aware of people who don't go to any where,all they do is sit at home and predict games,and they still kind of survive through it.
But I cannot say gambling or sports betting is very cool, because the addiction is something I don't want to talk about.Once you are addicted to it,you are doomed.Thats why I would prefer if they could ban it,I would even be happy.
I know some persons will antagonise my opinion,it's just an opinion please.