this feature is helpful when the players or gamblers family member know about it and the gambler realizes that gambling is causing them problems.
also it doesn't works if the gambler want to play after losing big and doesn't told anyone about it and play secretly then he will ignore the advice.
but after losing a significant amount in one session he gets angry at gambling and think i will never gambler for some hours to day in that phase he can click the self exclusion button or self exclude himself.
but after somedays he get hope that he can win in gambling and start to take more debt or deposit more money in the account.