On point 1, that depends if the college itself is accredited or of good standing such that employers won't scrutinize it. On point 2, that depends on the state

On point 1, that depends if the college itself is accredited or of good standing such that employers won't scrutinize it. On point 2, that depends on the state you're in and what goods/services are in demand. If you're in Louisiana and want to be a florist because there's demand for them, good luck (they have a licensing scheme for florists). On point 3, this is only true if you have access to the Internet in a reliable manner. On point 4, this can only work if you have enough money. Having five hundred bucks saved up as part of your yearly savings isn't going to move much even in risky investments (if a brokerage is willing to take such little money for their accounts).