My dad had polio when he was a kid. They said he would never walk again but he is a very determined man. However, he does have a seriously mangled leg that probably won’t support him much longer. He is in his 70’s now. I understand why some families don’t want to vaccinate their children. There are religious purposes/aborted fetal cell issues in some. I don’t care. After seeing/hearing what my father went through, I’ll definitely do most vaccinations for my kids! Skipping the Gardisil for the girls.
I did not know that a casual friend had polio when she was a child until she started limping. She told me that she had “ post polio” a return of the polio she had in her youth. Maybe your father is suffering from post polio.