You want to force people to do something they choose to either not do or wait and space the shots out. Both approaches make sense to me. If you immunize your kids you don't have to worry about what others choose or not choose to do. I know of few newborns that are in a classroom that will pass something on to other kids. They stick the needle into a baby within 2 hours of birth and it continues 32 times by age two. Over kill I think and dangerous I think, wait for a child's system to develop then get them vaccines that are not life threatening after 18 month .. smart move. But that is my opinion .. everyone has them ..