I understand and accept the part of gambling for fun and entertainment, because that is the way I take gambling, and if everyone who gambles takes gambling like that, then there won't be need for addiction.
For the part of education, it is true one will learn/know different countries and stuffs, but that is not a good reason, it is more like justifying gambling to be good to venture into. I believe you know that there is emotion in gambling, and one that makes you want to do what you don't feel like, with this, there won't be room for learning to take place.