It's a mindset that most of the time lead the gambler to lose everything, thinking that the bigger the bankroll the better chance of winning but in reality without good control of your capital, the chance of losing everything is possible, betting strategy is more on how you handle all the emotions and how you practice all your game plan, executing your plans is very important and not to allow any emotions as it can take you to wrong decision making.
the mindset of using a large bankroll is of course that gamblers will also increase the number of bets which makes the bankroll run out quickly.
I mean when a gambler uses a small bankroll say $ 100 and uses a minimum bet of $ 0.1 it will definitely last longer on each bet to get a lucky chance.
but when a gambler uses a large bankroll, for example $ 5000 but with a bet amount of $ 100-$ 200 it will run out faster. because a big bankroll definitely has the mindset to win big with big bets too.
and as far as I know, the faster the bankroll runs out, the more difficult it is to manage our bankroll, the more difficult it will be to find opportunities for luck.
Increasing the number of bets does not make the bankroll run out quickly but can actually make your bankroll last longer because you are budgeting it to be able to make more bets. The one that can make a bankroll deplete quickly is if you are betting in bigger portions but this can also happen if you have a bigger bankroll.
The explanation is because you are confident, thinking you still have more left even if you lose but you will only be shocked once there is only a small amount left in your balance. Another explanation is we are prone to rage betting once our early bets won't hit but we all can avoid it if we only have a minimal bankroll.