Калифорния, как всегда, впереди планеты всей.
Cпойлер
(или позади, не знаю точно)
Но вот совсем недавно, с 2016, по калифорнийским законам уже нельзя отказываться от прививок на основании "личной веры", как это, оказывается, можно было раньше.
July 1, 2016, for school enrollment immunization requirements. Jan. 1, 2016 marked the end of the ability to file a personal belief exemption.
Parents who do not want to vaccinate their children attending school have three options: obtain a medical exemption to vaccinations, enroll in homeschooling or independent study without classroom instruction, or have their children evaluated and enrolled in special education services.
The fourth option is to homeschool a child by hiring a credentialed tutor.