They can test for whether you have been exposed to HPV. I know because I was. If you don’t have antibodies, the vaccine might be useful.
Maybe. They may worry about its safety and efficacy in older people. I tested negative, and wondered if I ought to get it. But at this point in my life my risk of contracting HPV is pretty low.
Not sure what the age limit is for men, but for women, it’s about 26 because that’s when the cervical tissues “mature” and HPV is much less likely to take hold if they are exposed after that time.
Where on earth did you hear that? The reason it’s recommended to get it young is because vaccines work best when you get them before you’re exposed to the virus. But they’ve been relaxing the recommended upper age limit as new studies have shown benefits for older folks.