More and more parents refuse to vaccinate their children at school. The reason is mistrust in the medical system, vaccines having a lot of side effects. Some parents do not agree to inject with so many chemicals a child's fragile body. Moreover, there are studies that support the reduction of the world population by vaccines, so how can parents be trusted in this system?
And when I was a baby I was vaccinated but now it's another world, viruses have multiplied and many diseases can not be kept under control.
I really don't see how anyone could trust the health establishment with anything, personally. But vaccines are certainly one of the worst areas where they can do a lot of damage to people for a lifetime.