Giving kids the vote: the Polanski counter-argument

Regular readers of the Scene will know that I favor giving kids the vote. However, I’ve come to think of a devastating counter-argument. No one has yet made it to me, but if I’ve thought of it surely someone else will: that of the age of sexual consent.

If someone doesn’t think kids should get the vote, they can say something like “If a 13 year old can vote, who’s to say he or she can’t consent to have sex, or feature in pornographic material?” I call it the Polanski counter-argument. To be sure, technically it doesn’t invalidate my thesis, but it is devastating nonetheless, and I don’t have a good counter-counter-argument. It troubles me.

Do you guys have any ideas?