Probably, especially those who already made an easy money from gambling, coz it will be a distraction to them as they will keep gambling until it affects their mental emotions and become stressed as well, wherein no time to study and their only goal and focus is to make money on gambling. That's why for me it's not advisable for students and they must be banned in any gambling platform.
I don't think there are many people out there in the world that have made a lot of money from gambling.
Unless you're talking about the actual owners of the casinos, those people are definitely making a lot of money.
But I guess you are talking about people who have won big once, even though they have spent more money in the long term.
That one big win can change how they perceive gambling, yes.