There are high school students now who take college courses at the same time, which looks good on a student’s record.
But, there are valid reasons not to send a younger person to college. For example, some of the subject matter could be inappropriate. I felt safe putting my son into math courses but not the other courses. The parents should make that decision.
I remember there was a case of a girl called “Emily Beresfield” and she ended up the plaything of the athletes. The school refused to take responsibility and she burned out badly. She was bright, but her parents made the mistake of keeping her emotionally immature and sheltered her and she ended up unable to handle the entire university scene.
Thing is, university is always going to be there so there’s no rush to go.