Everyone just wants to beat the casino, and this is the main problem because most gamblers want to find a strategy that would be stable and profitable both in the short and long term. As for the Martingale strategy, I think it's most often used because it's too hyped, thanks to various media.
There is no one who doesn't want to beat the casino but it is a fate of destiny that no one can beat the casino. If anyone can beat the casino then that is rare and exception. We can't count it as any percentage and we should consider that case of the algorithm of the casino and we should bet base on the algorithm.