True, but “normal schedule” is hiding a bit of subtlety there: the hpv vaccine was recommended for women up to 26 at the time, so the oldest women who got it then would be pushing 50 now.
Not sure if there's something more recent than this, but it was about 15.5% of adults aged 27-45.
It also notes this:
"Human Papillomavirus (HPV) is the leading sexually transmitted infection in the United States, and 85% of sexually active individuals will be infected at some point in their lifetime"
So, if you're not vaccinated and have had multiple sexual partners, it is rather likely you have or have had HPV.
There are many strains, though, and the vaccine provides coverage against a few of the most harmful, so it's still probably worth getting even if you may have been exposed to a subset of strains.