This is one of the disadvantages of offline gambling: when you are gambling with those who are stronger than you and have the upper hand, you cannot just win them and quit gambling. They will make sure all that you have won from them is also won back from you, and you can also spend even extra, because they are not regulated and you can't make some kind of decision on your own, and if you disagree to play, there can be some kind of conflict.
I agree with you that on offline gambling we may not able to stop gambling when we want which we can do within a second on online gambling. The problem of mine not for strength but for one kind of request of few addicted gamblers. They tried to play as long as possible.
Yes, this is what I experienced before, when playing offline gambling with friends who are stronger in gambling, meaning they are not happy if there are players who win and then they want to stop just like that, what happens is a conflict and we have felt this, even though you have left the gambling even though you are a loser, usually other gamblers will be disappointed in you and will not be friends anymore.