what do you think?. Do you believe he is right with the rigid approach to gambling?, also should I continue convincing him to try out something new and enjoy these great offers?.
If your friend does not want to try a new casino, then there's no point forcing him. Some persons are averse to change, so you should let him be.
Trying a new casino will not increase his chances of winning, and neither will it make him to be addicted to gambling. What it does is that, it exposes him to cool features and incentives that my be lacking in the casino and gives him the opportunity to compare and contrast.