Hi A.-
My kiddos are older than yours...but when gardasil first came out...I declined it for my eldest for several reasons.
One, it was a new vaccine...and it seems that with any new vaccines (or drugs for that matter) issues arise when they are approved and used in the general population (US!).
Two, my understanding was that it only was (is?) effective on one of the viruses that causes cancer in any case.
And three...I used it as a moment to continue our life long conversation on sexuality...and the importance of condoms as a measure of protection for ALL kinds of STDs.
I did, before each kiddo went off to college, get them the meningitis vaccine.
I think every parent has the obligation (and the right) to do their research, and then make an informed decision for their OWN family and kiddos.
Best Luck!
Michele/cat