The player is playing against a computer so there's no pressure of playing against other users.
There is a lot of other more advanced ways concerning how to place bets in blackjacks. Bet the money that perfect afford to loose not beyond this method. https://taigamepc.com/giai-tri/game-bai-rikvip-trai-nghiem-va-cam-nhan-cua-mot-game-thu-lau-nam/29