I also taught myself to program in 3rd grade and read the classics on my own as a child. But also, I've taught thousands of students. Your claim might be true

I also taught myself to program in 3rd grade and read the classics on my own as a child. But also, I've taught thousands of students. Your claim might be true in some abstract sense. I could believe that if we give all students personal tutors from a young age then most any student can learn how to learn on their own by age 10 or 15 or so. Having educated and involved parents certainly made that possible for me and I'm nothing special. But conservatively 90% of students don't arrive at college ready for that level of self-directed learning. Consider e.g. that about half of college students are first generation college students.