Vaccinations are absolutely necessary.
As with any medical product, there are also possible side effects, which can have serious consequences in individual cases. Nevertheless vaccinations are more useful than harmful. If you do not vaccinate yourself or your child, you will only benefit from herd immunity in a vaccinated society. I do not know if the government should carry out forced vaccinations, but vaccinations against serious diseases should be made for your own safety.
As an example, thousands of people, especially children in Africa and Asia (India), could be saved every year if they had a rabies vaccine available.