The Venn diagram of people who are sophisticated enough to make these kinds of investments with better odds than gambling and people for whom $10k is hard to scrape together is indistinguishable from two circles. I'm sure there are some in the intersection but it's such a small piece of the pie we can effectively call it zero.
If you want to gamble that's your right I'm sure there is a roulette table somewhere near you. But the social harm caused by allowing dentists and grandmothers to invest in seed stage startups greatly outweighs any social good caused by letting that near-zero overlap get rich a little easier.
People here get u on their high horse about investment minimums and the like. Sure, they get real excited about some startup and they may turn out to even be right. I also know people who do angel and seed investing who are beating the bushes for capital or are just holding tight. Startup investing isn’t some magic money tree reserved for the well off. Heck, I’m pretty selective about even purchases of even individual public companies.