Yes because I don't think there is certainty for anything. Luck does play a major role in gambling and we need it along with a strategy that works well for us.
If we have a strategy which works frequently well then it is a contribution to our win. If the strategy is not right then we tend to lose more.
So in my perspective we need both strategy and luck to get the results in our favor.
Yeah, but people tend not to care about that. They think that it is enough if they only have a strategy without thinking about their luck. When they lose, they think that the strategy is not working, so they decide to change the strategy until they found one strategy that works well for them. But unfortunately, the strategy will not work perfectly if they don't have luck. A strategy and luck will work perfectly for you, and having both strategy and luck will give you the winning. A wise gambler will know about that and never force themselves to play longer if the strategy is not working.