Why do you think that? It's been a while since I had to get vaccines for my kids, but we had to sign consent forms, that were quite detailed in the risks associated with the vaccines.
On the other hand, there is no mandatory understanding clause, and I imagine a lot of parents just sign the forms. IF the doctor is giving the vaccine, they assume the doctor thinks it is safe. How would a parent know more than a trained medical professional?
If Perry included that, and the form included a clearly presented notification that the shot is optional, then I'll take back what I wrote. I know a consent form implies the shot is optional, but it should be spelled out. The MSM broadcast the shot as "mandatory."
I wouldn't know about consent forms because I don't vaccinate my kids. I had to shop for an MD who would go along because other parents ran into doctors who were very intimidating, even nasty, treating parents like idiots ... kind of like some posts I've read lately on other threads denigrating Bachmann supporters and vaccine refuseniks.
On your other point, parents should try to learn as much as they can about what doctors (and teachers) do to their children. I had to study a lot before deciding to overrule government medicine.