The HPV vaccine is recommended for ages up to 26, correct. That means my daughter can wait till she has reached her majority to get the vaccine and wait till marriage to have sex and she should be fine.
As much as you would like for that to happen, it might not work out that way. After a certain point, even if she is not of the legal age of majority, she will be able to make her own decisions regarding her sexuality. You may not agree, but I feel that health is far more important that dogma.