I recently heard a doctor mention that cervical cancer typically crops up around age 40. As a result, a study like this is a bit premature. It's not bad news, of course, but it's also not exactly good news.
In Québec they did the vaccination to all the kids at 12yo, boys and girls.
Up to the voters I guess.
The cost to vaccinate all americans is on the order of $100B.
Neither is the fact that "lives will be saved" a sufficient justification. You need to compare that against the lives saved with the alternative policy options available with the given resources.