My child is vaccinated on schedule. I went through the risks and, as best as we could calculate (science PhD here as well), he was typical low risk for a poor reaction from any of them. And he was/is fine.
Thing is, given that low risk, my decision to get him his jabs was based on both personal protection and herd immunity reasons. They're not mutually exclusive. Nor is it a holier-than-thou attitude; I feel that I share collective responsibility for other people who can't be vaccinated for various reasons. So even though my vaccinated ds contributes only a teeny-tiny reduction in risk across the general populace, it's an effect that becomes highly significant when repeated by lots of other people.
The relative importance of self- vs. others' protection vary for me with the type of vaccine.
For example, we opted to get the BCG because, although my ds won't be visiting countries where TB rates are high, he is very likely to spend time at his cm group with kids who will (or whose families will). So the BCG was definitely more for personal protection.
OTOH, I will be looking for him to get the HPV vaccine when he is older, too. That one's for others' protection. I would feel guilty and irresponsible if I chose for him not to get it.
My point for explaining my rationale here is that we all look out for our children's welfare, but that doesn't mean altruistic motivations don't also play a role in vaccination. For me, it's similar to the NHS philosophy: contribute what you can (be it taxes or vaccine take-up) so that everyone - regardless of individual contribution - has the chance to benefit if the need arises.