it is true, moreover if they cannot controlled themselves while playing gambling. The wisest way is to stay away from gambling.
Make "wise" decision on gambling maybe mean to just betting with amount that you can afford for lose. And it's just for fun/entertainment. (Maybe this is Wise, but not many people can wise like this).
There is not possible to act according to logic or knowledge when you gamble, therefore 'wise decisions' don't really apply in gambling field.
The problem is that during gambling you DON'T have enough of information to support your thought processing - hence it is called gamble and not a game.