You could just eliminate the regulations on who can and cannot be an accredited investor. It's a bit paternalistic to tell people what they can and cannot spend their money on in the first place tbh
Also, we already let people engage in sports gambling (which is guaranteed to result in a net loss) and cryptocurrency speculation, (which is a zero sum game). I'd rather give people more options to invest in financial instruments that at least in theory have the potential to be positive sum, since we're not going to ban either of the other two any time soon.