Both are skill based yet former is considered sheer gambling while later is not. Fantasy sports has become norm, while on the other hand if people come to know that you bet on sports you'll be met with eyebrow raise.
^ that's my opinion. What's yours? Do you consider both of them same or different?
I never liked fantasy sports. To me, it is a meaningless thing. Sports betting though, it is the real thing. Why would someone spend his time on the fake stuff while the real thing exists? You can study teams, coaches, referees and come up with an educated guess when you bet on sports. That is a very valuable thing to have which you don't with the purely luck based games. Studying teams don't always work though it is still better than having nothing. I'd rather bet on sports than betting on a luck based game.