Martingale isn't a winning strategy, it is one of the way where you get the increased chance of recovery. In simple terms it increases the probability of winning and the same isn't assured. A huge bank roll is a must and the same makes it quite risky, this seems to be the true reason where gamblers face loss applying the martingale state strategy when experiencing consecutive losses.
I think the reason many gamblers assume martingale is not a winning strategy is because it never really worked for them and in my opinion, martingale strategy is not for little gamblers but big time gamblers. If you say it gives chance for recovery, then there should be a great probability for winning but this can only be for those who have enough stakes to sustain the game and I can tell you that an ordinary gambler cannot use this strategy. I have seen cases where a gambler that is only playing for fun decides to use martingale system believing that it will enable them win their games, Hell NO. It does not work that way. This is the reason many has written off the strategy but at the same time, those professional gamblers are still cashing out daily using the strategy.
