I don't really know what people mean when say they are gambling for fun, there are many places that one can go and have fun maybe going to cinema with your family.
Gambling is mostly for the rich
Yes, you can spend your money on other entertaining activities but people have different tastes. Some people love to drink, some smokeand there are those who like to gamble and they really enjoy it.
And no, gambling is not only for rich people. Those who are not rich can also enjoy it as long as they gamble responsibly and don’t spend what they can’t qfford to lose.