From my experience in gambling only :
1. I cant sleeps.
2. Really addicted to playing more.
3. Can't control my emotion.
I`m a Typical person can't control my psychology. Just like trade, I try to ask the advice of my friend about in this case, they just give me some of their opinions about try to educate your self by some psychology method.
I agree with you, more than this type of problems there is nothing will happen for most of the people but when it comes to a cute edition it will get into some other addiction like affecting it his daughter Lifestyle.