People tend to play dice because its very easy to either win or lose. There is no special skill one has to master before they can start playing and no need to research like soccer games.
That's the real score out there, people are playing dice because of the easy win yet lose phase of the game. We won't mind if we will lose as long as the results are like the roulette which is random. Just roll the dice and wait for it in a nano seconds if you win or lose, that's why people like to dice.