Sports betting can be more successful than dice gambling, but generalizing it like that is wrong. It's impossible to say someone will be more successful at sports betting than dice gambling.
Sports betting requires expertise, dedication, and knowledge in order to be able to gamble successfully. Otherwise, it all comes down to mere luck just like with dice gambling.
Sports betting is good if you have the time but people gamble because of the urgency to satisfy their feelings, I'm not into sports betting but I play dice anytime and wats to know if I can make money right away on sports bettings sometimes you'll have to wait for hours and days to get the results, sports bettings is for those who want to make money while games like dice are for the gambler who wants quick results.
It depends on your game and interest, if you love sports betting then it will certainly give you satisfaction. The good thing with sports betting is you can verify it by watching the game and it will give more entertainment which will make you also more confident on the amount you'll stake.