[thaumasiotes]

> I'm assuming you agree there should be some age cut off point, unless you think sex with infants is fine and dandy so long as infants aren't looking to testify against the paedophile.

Just up front, the form of that argument will lose you a lot of respect.

Here are three approaches to sex with infants that don't involve a cutoff age at all:

- Physical maturity threshold, e.g. menstruation / ejaculation. In a sense, this is the approach we use to drinking and driving.

- Mental maturity threshold -- an infant is not capable of anything, and so is guaranteed to fall on the banned side of the line. The biggest use of this kind of thing that I'm aware of is trying juveniles as adults.

- Just figure that nobody wants to have sex with infants. (This isn't, in the literal sense, true; I believe the youngest documented mother was two. However, it can easily be so-close-to-true-that-enforcement-is-a-loss-to-society.) This is the approach we use to prevent people from bombing trains, subways, museums, city buses, and pretty much everything else except airplanes.