There is a lot of evidence proving that many seemingly innocent vaccinations are in fact a risk, and can cause serious conditions,including autism, even death although that is rare.
A doctor i know personally is extremely against giving children these routine vaccinations, because of the amount she herself has seen occurring from them.
Besides for the fact that very often these vaccinations do not help, as there are so many strains of every disease and its practically impossible to be vaccinated against them all, and very often children who have been immunized against a disease will get it anyway.
Most of these diseases are unpleasant but harmless, and getting them gives a much better lifelong immunity than a shot does.
I personally had all these diseases when i was a kid, as did many of my cousins and siblings, and honestly, we are all totally fine, the only effects are a much stronger immune system bh.
Like i said, its unpleasant, but not dangerous, and the risks of the vaccines are very real, and many ppl just do not want to take risks with their kids.