Various strategies can be used if it makes the game more entertaining for us, but, yes, we must know that it's not a scientific method we are using, so, we shouldn't expect a positive outcome. I, for one, prefer betting with a low probability of winning, and if I lose I'm not frustrated about that, I know it was very likely to lose if the win chance was 0.1%, right? And if I win, it really gives me that great feeling of being so lucky. Mathematically, this strategy is no better than betting with 90% win chance all the time, but I just choose what suits me, what makes my gambling experience more enjoyable, that's all.
I totally agree with that, we all know, and if we don't, we should, that there is absolutely no strategy in gambling that can actually always make us win and let us recover our losses, you might be able to do it once or twice using a strategy but that won't continue and if you are destined to lose, you will lose eventually even if you are using a strategy that people refer to as to be the most effective one.
So gamblers should only use strategies of their own that they think are good for their game and that makes them enjoy their gambling sessions because, at the end of the day, that is what's important, at least for most of us.