So that's pretty much the standard idea of dual/concurrent enrollment.
Depending on what state you are in, there may be different dual enrollment options. Multiple members of our immediate and extended family are high school-age, attending college full or part time, and still enrolled as high school students through dual enrollment.
www.ecs.org has some resources on what states offer dual/concurrent enrollment, including some (slightly old) info on funding for reduced tuition. For example, both California and Massachusetts offer programs for high school students to take community college (or even four-year college, in some cases) courses at steeply reduced tuition as dual enrollment students. Depending on the program, they may be allowed to enroll full time, or be capped at two or some other number of courses.
My school has a pilot collaborative with a local college that will have an entire cohort of (not PG) honors students graduating with high school diplomas and associate's degrees, similar to that referenced in one of the articles below.
There have been a few news items in the last year on students who graduated from high school and community college in the same year. Here's a few from a quick Google search, including some who aren't described as necessarily GT:
http://www2.philly.com/philly/news/...school-and-college-at-the-same-time.htmlhttps://www.cbsnews.com/news/indiana-teen-graduates-college-before-getting-her-high-school-diploma/And then there's the option of just skipping the whole question of a high school diploma, going straight to a solid but not elite college, and waiting for grad school to attend a higher-ranked university.
