It doesn't matter how good, or how well funded, the school system is: if the family is poor, you're not going to be able to float rent on the storefront you need, or purchase initial inventory of whatever you're making, much less soak up a few false starts, much less take out a bank loan to do any of these things.
Period.
This does not in ANY WAY mean there shouldn't be good school funding across the board.
It means that anybody who thinks 'the schools are now funded, so the kids from poor families are now equally able to start a business' is high… or disingenuous.
Let's assume these kids are hungrier, more motivated, and just generally better than most people. If you expect them to simply get busy competing with lazier and less capable kids from wealth and privilege, because they ARE better than the lazy rich, you are overlooking the role of generational capital and access to capital. It would not matter if you were in fact significantly better, smarter and more motivated: banks want collateral, and entrepreneurial exploits don't always bootstrap up from zero. I think it's far more common to prime the pump, sometimes to the tune of tens or hundreds of thousands of dollars each time.
By all means educate, but don't con yourself that it will matter, in the absence of any other changes.