What each one of us finds entertaining differs based on our personalities, and I have no doubts there are people that do not understand how gambling can be fun at all, as it is an activity that is highly repetitive, still there is no denying that gambling for fun is a real thing, as it is obvious the people here on the forum understand very well they have no chance to make profits with gambling, and they still decide to spend some money this way as a way to relieve some stress and get some fun they may not get any other way.
It can be entertainment only if you initially do not perceive gambling as earnings, and losing or winning will not matter to them, but simply as a way to distract yourself from work. Only it seems to me that you need to play on a small budget, so that in case of loss there is no big disappointment, but this is relevant for me, maybe someone needs to risk big money to distract themselves.