You know how I paid for college? Loans and a job. I'm not rich. My family is barely middle class. I got good grades in high school and was able to go on to get a college degree. And most high schools in the country offer the same curiculum as my HS did... some might have worse social situations, but that isn't much reason to not study your ass off to make something of yourself.
And even if you don't want to go to college, it is still possible to be middle or upper class. You have to have goals and ambition to reach those goals to not be stuck working at a crap, minimum wage paying job your entire life.