Rhetorical question: why do non-insiders still bet in these markets? Surely, after all of the focus on insiders, people will begin to realize that betting without insider knowledge is a fool’s gambit..
Kids are growing up with the culture of sports betting, meme stocks, Robinhood for easy investing (even if you can’t afford a single share of a stock), virtual items and loot boxes, “blind box” products, etc. the entire economy runs on taking advantage of people with gambling compulsions / addictions.
And to answer your rhetorical-but-not-really question, not all people know they are “the fish” (referring to the quote from the movie Rounders).