I think I generally agree with you, it's a tricky question. Ultimately, people should feel a responsibility to vaccinate for the sake of their children and everyone else.

The problem is they don't, and making it compolsory won't help.

When AIDS was a big thing in the '80's there was a big, and very scary, propoganda campaign. The same should be done here, start hitting people with what happens to people who actually get these diseases.