It is maybe a big amount for Western Europe or Asia, but for the rest or the Europe it is common money, especially for crypto investors.
I understand that all people have different financial capabilities, but who will seriously consider an investor with 10 dollars. Of course, projects need large investors with big money!
All projects want to collect as much as possible with fewer investors. Processing a large number of investors takes a lot of time and effort. Sense to collect on dollar investment.