Gambling is everything especially for those what we called compulsive gamblers or those addict on gambling, but it made me realize, why they get so addicted in gambling? if gambling can be the reason for them to lost their money, properties, relationship to family and friends, mental health and physical health. I know that there are gamblers who play because of fun and entertainment, but actually there are so many ways for us to make ourselves entertained without even losing our money.
But anyway, I can not judge and blame all those people because we are all different, we have different story in life.
This question does have different answers. We can't generalized it as people have different reasons, which also you mentioned.
We aren't in the position to say, "Hey you, there are another way to entertain yourself without losing money! Stop doing gambling!" as we don't know the story behind their gambling activity including.
But one thing is for sure, winnings are one of the reason, as always, why they become addicted. Nothing beat that experienced as we gamble. We always want to achieved it as much as possible so we keep coming back gambling our money.