My daughter is a B student. She is taking a dual enrollment class to see if moving to a four-year college directly out of graduation is right for her. She also has some disabilities, and she can use this single course to help her understand what her accommodation needs will be, and learn how to advocate for them with the college, while she is still in daily contact with her parents and special education teachers at the high school.
Also, she wasn’t interested in any of her high school’s electives that would fit into her current schedule and, doesn’t want to waste the time she could be allocating to learning something interesting.
The junior college atmosphere is something new and grown up and could motivate a reluctant h.s. student who might be sick of K-12 routine
The fact that our community college offers courses at 50% off for dual enrollment students, is certainly an incentive.
I doubt very much that an elite college’s admission counselors are naive enough to be impressed by a few electives done at the community college. But, it could help an applicant, like my child, by proving to an admissions committee that an average student can do college work.