Why did Constantin Brancusi teach himself to read and write?

Constantin Brancusi taught himself to read and write in order to attend the Craiova School of Arts and Crafts.

As a child, Brancusi did not attend school, working instead as a herder and later in various service roles. His talent for woodworking and carving eventually caught the attention of an industrialist, who facilitated his enrollment in the school in 1894. To meet the requirements for admission, he had to acquire literacy skills on his own.1