People who have extra money or big bank balance might be able to sustain it, else for smaller players martingale might not be an option. One should be able to chart out how many loses in a straight streak they can manage and play and will they be able to sustain even if 10 straight loses or say more for that matter. This would depend on everyone and amount and risk they are ready to take it.
If you can only sustain 10 straight losses don't expect to win, 10 is an average of 20 or more and you are on the safe side although not guaranteed,
if you are good for ten straight losses then don't use martingale and make it a luck-based roll, and of course, do it manually, sometimes following your hunch while betting manually, will give you good results.