I believe that if we're playing a game with a house edge, where winning depends purely on luck, then bankroll management doesn’t really matter.
What you deposit is already intended for gambling, so whether you go all-in or divide it into smaller bets, the reality is that bankroll management won’t change the odds. It just adds an extra layer of stress in making decisions that, in the end, won’t really affect the outcome of a luck-based game.
There are some gamblers who like to gamble to get pleasure. They find excitement in gambling. If those gamblers only rely on luck and put all their money in the bet and if they lose in that bet then they have to deposit money for the bet again which can be difficult for them. But if a gambler can manage his bankroll and money management in terms of betting then he can enjoy the joy of gambling for a long time.
In gambling wins and losses are the common factors. It is definitely related to luck. A gambler should not rely only on luck but should also use strategies. Luck will not favor a gambler from time to time sometimes strategy can also bring victory in betting. That is why I want to emphasize on bankroll management.