If the gamblers are not a whale there's a need for bankroll management which is a great help for not only managing the game played properly but also helping the gamblers to have some fun set for future game which technically increase the longevity of time spend on gambling and it also help reduced the chance of addiction.
If we look into the benefits of what I pointed out I believe we could all agree that bankroll management is important.
A lot of people here just gamble without having a real bankroll or maybe they don’t even understand what bankroll management is.
If the casino didn't give a gambler bonus game, or possibly by that can be use to play I don't see any way a gambler will gamble without have bankroll.
The reason is because they don't understand bankroll management.