You’re referring to two different things. Academic acceleration typically happens in either Elementary or High School level, sometimes both.
It’s extremely rare and is done with children who have genius level IQ and would be bored silly with the average curriculum in the lower grades.
These kids have independently studied subjects way beyond their grade level because they were interested in them and love learning. They are self-motivated learners and it’s, practically speaking, impossible to put the brakes on their advancement.
But they are EXTREMELY RARE. A 10— 12 yr. old attending college (and being able to handle the coursework with ease) is certainly not typical and definitely not a life of ease. THEY ARE WORKING hard at learning. They aren’t sitting around for hours playing video games.
The second thing you mentioned is “experience based learning”. This is generally applied to people who have worked for years in a particular job or profession without having typically earned a degree in that field.
There are only a few schools which will give them credits for certain courses BASED UPON TESTING to verify what knowledge and experience they’ve gained. And I believe in some schools that if they can pass the typical final exam for any course (based upon their independent reading or learning) they can get credit for the course.
But this is limited to coursework only and not an entire Masters degree or PHD. And there are very very few schools that do this.
They don’t just get a sweet deal and slide right through to an advanced degree. They actually have to have years and years of RELEVANT WORK EXPERIENCE.
They can’t spend their high school years just playing video games, have no really relevant adult work experience and just magically waltz right on through to a PHD so they can instantly become a Psychologist.
The world just doesn’t work like that. The two things you mentioned are two different programs for two very different types of students. And they are not offered at most schools; only a handful at the most.