Idaho #1 anti-vax state in USA

Last year, Idaho had more kindergarten students attending school without required vaccinations than every other state, a statistic that has raised alarms with local officials. Last year, 11.6 percent of kindergarten students enrolled in Kootenai County Schools had an immunization exemption on file, higher than the statewide exemption rate of 6.5 percent, according to a recently released national report by the Centers for Disease Control and Prevention. Kootenai County school officials are taking the trend seriously, and are working with state officials to increase their educational outreach. “As nurses in the school district it concerns us when parents sign waivers as opposed to getting their children immunized,” said Dr. Cindy Perry, coordinator of Coeur d’Alene School District Health Services. “Whenever possible we do try to discuss this issue with the parents”/ Keith Cousins , Press. More here .

Question: I simply don’t understand the thinking of parents who don’t vaccinate their children?