My wife is the best about this, I do not stop anyone but she stops me very well and not even for the reasons you imagine it would be. She is always against me gambling because her father was a big gambler himself, but her father was a big business owner so it didn't really bothered the family.
However, she saw that and quite against me gambling as well and figured out a system where she isn't saying "stop gambling" or anything which probably would still work but she found a system where she says "whatever you wager, I will also spend for myself".
So, when I wager 10 bucks, that means I am actually spending 20 dollars instead, when I wager 100 bucks, that is 200 dollars! Which makes anything under 2.00 odds really not worth it. You want to know the worst part? If I ever win, we will spend the win together, this time it is not just her, but together which is nice of course but I can't even keep a bankroll this way. She literally made me start gambling with small change amounts thanks to this method
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Haha this is a great strategy for sure, efficient and creative!
As for the topic itself, we live in a selfish world so not many people will bother to help strangers. So, it falls down to the person to be responsible or not. At GoodLuckMate we always offer honest info and use all those necessary warnings that players should play responsibly, not spend money they don't have, and to consider gambling a way of having fun rather than a way of making money (unless we're talking about professional gamblers but they are a different story). And we always give bonus rules for all those 'free' offers so our readers don't misunderstand things and then end up spending tons of money or have misguided expectations. No honest business would want to make money from people who can't control their spending.
I believe the UK has some strict regulations regarding this overspending or generating debt at least. They made operators responsible for checking players' income as well as banned credit card gambling to prevent debt generation. New restrictions are introduced regularly. Some of them are welcomed with opposition from those who do play responsibly but they do help problem gamblers I guess.
I also agree with some people who mentioned that they don't want anyone bothering them while gambling as they follow strategies and possibly have a spending budget. So, in reality, you never know who's having a problem and who's handling the situation. I would say try to help people you are 100% sure have a problem or otherwise don't meddle in other people's business. But again, everything varies depending on the situation in the end.