Yes, indeed, one of the horrors of chickenpox is shingles in your elder years, another horror is contracting the disease while you are pregnant and giving birth to an autistic child (real autism) or, another horror, testicular atrophy with the inability to father children. If an adult who is not immune is exposed to a child with chickenpox, the resulting illness can be VERY serious and possibly fatal. So yes, I agree with you, it is horrible not to vaccinate your child against chickenpox. I do agree, however, that the way we routinely vaccinate children now is not ideal, and if I were a young parent, I would insist that my child’s vaccinations be spaced out much more than they are, the way it used to be done.