A majority of Americans are in favor of allowing states to decide whether to legalize sports betting, with avid sports fans even more likely to support such a move. That’s according to a survey commissioned by the American Gaming Association, the casino group pushing for regulation of sports wagering around the US. Perhaps the most shocking data: A minority of people are unaware of the current legality of sports betting in the US. The firm Greenberg Quinlan Rosner conducted the national survey for the AGA. The questions revolved around people’s attitudes toward sports betting. In particular, it polled sentiment toward...