The ability to learn to read and literacy vary from person to person.

Some people, despite being well educated, have severe dyslexia. In contrast, some people have an innate talent for memorization, reading and writing.

Historically, there are people who are gifted in the field of literacy.

I think that reading, writing, and memorizing useful phrases would have been possible for a person born with literacy.

In particular, if children memorize religious literature, they can be praised by the adults around them.

In modern times, you can see many children memorizing the Qur'an or the Torah. Some children memorize all the scriptures by the age of 10.