Probably no greater subject today concerns parents other than vaccine and vaccine safety.
When I started in private practice over 30 years ago, we had far fewer vaccines and we suffered from many of the consequences of the infectious diseases that are now presented. For example, the haemophilus influenza B vaccine, which became available about 20 years ago, has basically helped to eliminate all meningitis in small children. Likewise, the pneumococcal vaccine has done the same for pneumonia and other cases of meningitis.
The result being, today as a pediatrician, I rarely, if ever, have to contend with meningitis, which was a great fear and a relatively common problem no less than twenty years ago. At the end of the day, I support vaccines. The patients that come to me, know that I support them.
My approach with families -- knowing that there is some reluctance in some families -- is to work collaboratively with them. While it's not my choice to spread vaccines out, there are problems with that approach, I often do so in order to get the children vaccinate. At the end of the day, most of my families do vaccinated, even if the schedule is somewhat delayed.