The protection from the vaccines lasts (probably) a lifetime, and HPV is quite widespread because it is: very easily communicable, and infections linger for potentially long periods of time without any obvious symptoms

Something like 80% of people are sexually active at all will be infected with HPV at some point. You may not have been sexually active, but your future partners may have been. I personally have a friend who went through stage 4 cancer contracted from her (now ex) husband.

So, of course not literally everyone needs to take it, assess your own risks, but it's quite an easy, highly effective vaccine: don't overthink it.