Who would do this? in his right mind a normal person won't sell all his coins and take away all of his possession might be the solution, and I think this kind of solution won't work if the person is really addicted to gambling I think the best way to do it is to have a psychiatrist look at what level of addiction a gambler went and then that will be the time when the procedure will occur.
The best part that you can do your right that go to psychiatrist first because they can give high recommended way to stop and prevent your self from being addicted to gambling..
Yup! he can certainly do that and play a game on real time casino with fiat if he can't play it in bitcoin there are casino that can be played by fiat an addiction can not be solve by that means, and can only be solve by taking him to a psychiatrist for a check up.