Thena, it doesn't sound like you are anti-vaccination. I understand your position and where you are coming from. I somehow have a feeling that the reason the recommended age has decreased is because more kids are in daycare at a much younger age then when people my age were. When I was a kid, we didn't go to daycare and really didn't have exposure to many other kids until we started school. By having the vaccines at an earlier age, the doctors are probably hoping to prevent accidental infection due to earlier socialization.
It's hard for a gay man to feel bad about himself when his urologist asks him out on a date!