One of my worries about sending a young kid to full time college is the tendency for a kid to get locked into a field or career too soon. Colleges have requirements and limited selections of majors so a child might not be able to explore a variety of options. It seems to me like taking classes at college would be freeing but full-time degree-seeking enrollment might put a kid too soon on a career path. Certainly fine for some kids, but maybe too limiting for others.