If you will not limit yourself, then for sure in the long run you will end up losing your money, martingale can work if you are lucky and you are wise to quit while you still have some winnings, but if you will push your luck and try to add more with your earnings, the sure thing that will happen is you will lose everything in your wallet.
Unless you are really lucky and that winning streak extends to the point where you are really satisfied and willing to quit your way
to enjoy with the money that you've got.
Yes, obviously the Martingale strategy is not the only solution, but as for some players they still believe deeply in the strategy and that is the reason why the casinos are such a profitable business, they let themselves be carried away by emotions, adrenaline , all this makes things go another way and now, I do not think that things could be so bad, because it is specifically known that many players who take care of their money do not apply this strategy, they bet very little and make their money It is seen as available balance, so these are issues that one should see what each player thinks, unlike casinos, there are some strategies that use the martingale in trading, but I don't know how well they do at it.