Q. What age group is likeliest to oppose mandatory vaccinations

A.  Millennials, those age 18 to 29

According to the Pew Research Center, the older you are, the more likely you are to favor mandatory vaccination.  Among those 65 years and older, far from child-bearing age, only 20% of US adults believe that “parents should be able to decide not to vaccinate their children or that all children should be required to be vaccinated.”

That percentage more than doubles, to 41%, among millennials, today’s generation of young adults under 30 years of age. For those between the ages of 30 and 49, the percentage is just over one-third, at 35%  It drops to under one-quarter, to 23% for those age 50-64.