There are some people gamble and lose. if you ask them why do you gamble? They will answer you "just for fun"
They know they are loser in long term and no strategy works, but continue to gamble for fun.
How can enjoy something that you know you will lose? Is losing money really enjoyable? Isn't there any other entertainment you can enjoy?
I think these people are still hopeful of winning back previous losses or they are addicted. Gambling cannot be just for fun. There are many free games too.
You know what, not all gambling players has the same reason why they're getting in.
It might be true that for other players it is for only, but others played because it is already their vices, and some
are doing it to find their luck were their small amount of money would become big in the end, something like that.