I (male, 40s) paid Planned Parenthood in Florida for the three Gardasil doses out of pocket after the male age limit was raised to 45 circa October 2018 (as I wanted to ensure I was vaccinated before exiting the permitted age limit). Insurance covered it for my kids with no cost at their pediatrician.
Ask your doctor, get a quote, if you’re unsure what the cost might be. Your insurance may cover it with no cost to you.
https://sph.umich.edu/pursuit/2018posts/fda-approves-hpv-vac...
Are you a divorced dad dipping your wick left and right or did you get it merely for the sake of doing so?
The reason insurance does not pay for it at that age is because it makes no sense.