there is a caveat, and that has to do with foreign aid work. if i were an african, i might be queasy about letting some aid worker from some american foundation put something in my arm - because there's an unfortunate history around eugenics. the issue here isn't around the safety of vaccines, but around what is actually being injected.
even in the united states, there's the tuskegee experiment, where they injected blacks with syphilis. this is something that happened, and it can't be completely dismissed when making decisions.
but, regular school vaccinations should be mandatory.