Insurance is different from gambling because if you pay and things go well, things go well. If you pay and things go badly, things go a lot less badly. In fact, insurance is the exact opposite of gambling. Gambling is all about risking it all. It's an activity that sits at the extremes of the bell curve. You win it all, you lose it all. Insurance on the other hand is a small price you pay that, through statistics, al…
I would say that gambling is about paying for entertainment, much like lotteries. Your overall expectation is that you will lose money, but the entertainment value of being able to imagine yourself winning a huge pot compensates for that.
Of course the above assumes that you can afford to lose the amount of money you are gambling. The few times in my life I have gambled, that was always my approach: I set aside an amount I was willing to lose all of, and if I got to the point where it was gone, I stopped. But of course many people who gamble do not take that approach.