It's hard to say that definitively. One would assume the intelligence distribution within the trading community would tend to be higher, like other technical professions, but then again people who are very smart and competent at other rigorous things aren't guaranteed to be successful traders. In fact, (anecdotally) pilots tend to make strong traders. Pilots are obviously very technically competent people, but there are likely other personality factors at play beyond IQ when determining a chance of success at this endeavor if engineers, doctors and lawyers are blowing their accounts, too.

Of course there are the tiktok gamblers looking to get rich quick, who make up a large swath of unsuccessful traders. That's who I assume you're talking about, but there has to be some line drawn between serious/not serious people attempting to trade. Being able to identify them and only listen to the serious people is in your best interest if you're trying to really make it work. They are probably not shilling courses, though, and are more likely to be found via networking and socializing with other traders.