Vaccine Free and Happy

I have two unvaccinated girls, ages 4 and 6. I have nothing much to report, they have no health issues, maybe a couple mild earaches, they both have thrown up/had diarrhea only a couple times while sick (except for the time we did get rotavirus :D). Other than that, they are totally healthy. I do find it odd that my friend's children seem to have all sorts of issues, such as allergies, having their tonsils removed, nebulizers, learning or cognitive disabilities, etc. And it is accepted as perfectly normal?? The sad truth it has become the norm. We looked into vaccines after my stepson, age 9 now, started regressing at 18 months and developed, what was later diagnosed, Autism.