> I find it hard to resist a scratch off from time to time myself.
As long as you aren't doing it to win but instead to enjoy yourself gambling, and you do it with disposable income, this is fine. Don't beat yourself up for enjoying something mathematically suboptimal.
> Even if they think it’s impossible to work themselves out of debt they hope they’ll “win big” one day keeps them going to an extent. It’s really just another version of the “Marshmallow Question”
On the contrary. With the Marshmallow Question, you know you'll be rewarded. In this situation you do not think you will be rewarded. If the Marshmallow Question was "do you want this Marshmallow, or do you want it thrown away", that would be a better example. At least, in the mind of the players
> but to them the math wouldn’t work out.
It's entirely possible the math doesn't work out. A negative EV is significant if we are playing a game where the purpose is to increase my bank balance, but it's entirely possible that for various reasons that doesn't apply IRL.