eyelash growth

Why do shortsighted, and longsighted people get attracted to education?
My mother had 10 children. Three of them who were born shortsighted are school teaches. When you walk into their house you see big piles of books all over the place.

However the seven who were born with normal vision work as farmers, briclayers, carpenters, plumbers etc. When you walk into there house you will not see one single book.
Why is it that people with poor visual accuity get attracted to reading? They should keep away from reading because reading can do more harm to their eyes?

because they think they look smart wearing glasses , so they feel smart,so they want to be smart!so mind over matter is true!?

Why the shortsighted ,and the long sighted people ….?