Earlier quoted context omitted.
To state it directly, the vast majority of the population doesn’t have the capability of assessing risk in speculative investments and is disproportionately susceptible to fraud. You give the example of “investing in startups” without also describing that most startups fail.
i understand why we might want to dissuade speculative investments, byt why is it the state's role to prevent citizens from speculating?
When people commit harm to themselves out of ignorance, I think it’s reasonable for a government to step in.
Note that I think it’s reasonable to fundamentally disagree from a libertarian standpoint but I don’t see many reasonable people arguing against seatbelt laws.