Herd immunity protects a whole community from disease by immunizing a critical mass of its populace. Vaccination protects more than just the vaccinated person. By breaking the chain of an infection's transmission, vaccination can also protect people who haven't been immunized.
Women will walk 10 kilometers in the heat with their child to line up for the vaccine. They know the power of vaccines. We take tuem for granted here in the US because we have not seen these diseases or our children die from them.