While this is obviously risky, in the 2/10 chance where the startup IPOs or gets acquired, everyone stands to benefit a big deal.
I recently heard about the case of a private school which was able to invest $15K in one of $SNAP's funding rounds (the VC partner was a parent at the school). At IPO, the school netted $50M on this investment. This school was already well off but I can imagine what this would do for a lot of public schools if this option were available to them.