That is rather too idealized, I would dare to say nobody in this board applies such a tight budget when comes to their gambling activities... 10% up to a 30% sounds more realistic if we talk about budgets to gamble. People are inherently just too greedy to wager such a minuscule percentage of their income.
10% is certainly quite ideal and enough to do a lot of gambling games and some bets.
With the budget already limited there is no additional budget for gambling, to avoid addiction from happening but also depends on the gambler himself,
if they are disciplined with that limit, then there will be no greater loss when losing.
Actually, it would not take much research before you encountered stories of people gambling their entire monthly wage on Plinko balls or dices. It is the state of much of the gambling community, there are always expectations of winning big enough so they gamble more than they are willing to lose to their bad luck.
And with a smaller percentage of funds people do expect big wins, but seeing the amount of betting funds used is certainly not comparable if only 1% of the funds are owned, but also depends on the strategy of each player, it is also about chance and luck.
Fools who get into gambling will just spend their salaries in casinos without having any restrictions.
They hoped that by putting up all the salaries they would get a win of 1000x their salary, but in reality it was just a dream and they lost everything.
It is necessary to be wise in using funds for gambling, do not sacrifice monthly salary to gamble blindly, it will only result in losses and regrets.