Nah, we're stupid. .. Millions of people play the lottery .. Ditto casinos
Millions do it, but do most do it? I think gambling is just a niche, for some (far less than half) fraction of the population. That just tells me some people are stupid, not "we're stupid."
Heh, googled it. All the top results are about addiction. Anyway, it looks like around 1/6 to 1/4 of people gamble. That's much higher than I would have guessed (I thought it'd be more like 1/20 or something like that), but nevertheless, telling me a quarter of the population are fuckwits, doesn't tell me the average person is a fuckwit.
Also, about the fuckwittery: I think some (most? I hope) people who gamble, know they are losing money and that the house must necessarily make a consistent profit off them. They're doing more than gambling; they're buying something. I don't value what they're buying, but they do. Perhaps they like being around gold wallpaper, and enjoy drinking the "free" drinks that they're buying. (Am I stupid for buying electricity that I feed to the computer I play games on, even though I never win electricity back?)
Leadership is different; unlike gambling, it's something that you have to tolerate. It's very hard to have a life free of leaders.
Imagine there were a law that you are required to gamble! So you go looking for the least-worst game. (Craps, I guess?). Eventually all the non-gambler-type personalities are playing craps, because they're forced to. Then the craps houses have to compete, so one of them offers "free" drinks, another one offers a subtle rule change that you have to analyze carefully, and another one has cool animated wallpaper. Are you sure, even as a non-stupid person, you're going to get that choice right? Will you even remember what value you're trying to optimize? There's a law that you have to lose money, so are you trying to minimize that loss, or are you maybe trying to find the one with the best drinks, or the least travel time from your house? The more the houses compete, the more complex the problem will get. Eventually you will be up against people who a very good at making the choices be hard. You'll be thinking travel costs you $0.180 per mile when it's really $0.188, or drinking "free" drinks that are worth $2.91 to you, but they got their cost down to $2.78. You'll think their Fizzbin game's Tuesday rule is an advantage, but actually it puts you up against better players, and two of them (which two?) are agents of the house.