And as usual, luck will lead us to a result in gambling, winning or losing will greatly depend on our fate that day but that's a case where the luck factor exists, if the casino can get rid of every outside element like luck and technology, double betting after losing only gives us a single result, we will lose or be led to a bigger loss. This is also a warning to those who ask this question, luckiness will be a factor that can be arranged in gambling, since joining, we have lost control of luck and are going into a loss
That is what we will get into gambling, and no matter what is the result, we should accept it, and don't complain if we lose because we are not lucky than the other people. If you are not ready to get the loss in a big-money by betting double, you don't have to use double but use little money is enough for you. We need to control ourselves not to tempt for placing betting double because the chance is not too big while we also don't know how good our luck at that time.