I don't know if its the same everywhere, but here the community college has a K-12 program where kids under 18 that are still enrolled in regular school can take 'dual enrollment enrichment' classes at school or online. DD1 just turned 16 & started at our local CC. Shes homeschooled & I gave her the choice to take additional classes at a Charter or at the Community College. She picked the CC because she didn't want to deal with all of the highschool stuff. Shes only taking one class 2 days a week & is loving it, but its been hard on me releasing her into the wild like that. Because of the 'dual enrollment', we didn't have to pay unit fees & all that other stuff (only her books.) She says theres a 15yr old kid in her class too.