Luck will come to anyone, regardless of anyone. But luck will not always be there, there will be many failures as well. Slot games only rely on luck on the slot system, while for soccer sports betting there are several predictions that can be made regarding players, player formations or other factors that affect football matches.
Luck is quite different with the system. If you are betting and you didn't know what was happening with it. Your luck if you will able to get a very big profit from there. Soccer betting is about how smart you are thinking about the team that has more chance to winning the game.
People didn't know about the result when it deals with non football betting game
I'd say that luck is still the same, say if you will also engage in sports betting without any knowledge but if let say you have more knowledge in sports betting then that was the one that made you win on the game, not luck while in a casino game, knowledge doesn't have a big contribution but it can only help you understand the rules of the game.
I believe that you mean by non football betting game are casino games? But you need to be more specific next time as not all people can easily get what you mean because when you say non football betting game it can also mean other sports. Of course, you won't know the result of other games if your knowledge is only on football or soccer but why bet on them anyway?