Suspect this is caused by demographic shift, don't know any people who have even the remotest HPV vaccine hesitation over the past twenty plus years.
Know that it is common among certain demographics though.
what kind of demographics? I don't think HPV vaccine is a subject I've ever heard about in the social circles I've been in (whatever the opinion on the vaccine).
About ten years ago I was at a party and an Australian coworker and I were talking. I casually mentioned the HPV vaccine since his daughter was entering her teens. He declared, “I’m not going to turn my daughter into a whore.”
You may be right that the demographics are shifting but not necessarily in a good way.