The logic doesn't work. By definition, minors who get pregnant are less mature than those who do not -- in general, they belong to the subset of teens who have sex but don't use birth control at all or correctly, as opposed to teens who either use birth control consistently or abstain from having sex. So it doesn't make sense to have laws, like those in California, that give the least responsible teens more rights than are accorded a responsible teen who wants a tattoo. Still, I seriously considered voting against Proposition 73, a constitutional amendment that would require parental...