~looks a little relaxed, but convincing, not much of a challenge, if the guess is right.
That's because it is easy to play and no big efforts unless you rely on luck.
While in sports betting, you get bored because it needs more effort, plus you probably experienced too many losses lately.
I bet your favorite team is Juventus, right?

~there is something to learn about roulette gambling, or just luck in this game.
As far as I know, mostly about luck. Even if there is an approach to make a higher chance to win, it won't be so significant.
Roulette is a classic luck based-game in gambling, all people know that it is all about how your luck works there.
