Civics, Rights, and Responsibilities

Civics is the study of what it means to be a U.S citizen. As a U.S citizen, I have freedom, rights, and responsibilities. I have the freedom to learn, which is protected in the United States. One of the responsibilities associated with this freedom is to attend school. I have to show up at school and to be respectful to everyone. I choose to act on the freedom to learn because I want to get a good education, so I can get a good job. I have the responsibility to support my family, and the only way I can do that is to have a good education.

I wonder if education is a freedom, why do people go against it and not attend school?