If you are perfectly clear about shooting an old lady in the head, then I don't see what the confusion is about.
What if you get a divorce from your wife, or if her family has radically different politics than yours? You feel safe, then, with a one stike you're out type of system?
Don't be ignorant. Progressives have made a living out of turning the system against traditional type punishment. Like I and others have pointed out, there are enough man-haters out there to use this type of suggested legislation against politically incorrect men. Therefore, don't be a dope.
I see where you are coming from, I just disagree on the solution.
To me, just raise the standard on proof for a conviction for a first time offence it the sentence is going to be brutal.
In this case, make that sexual offence sentence as hard as possible, but apply it only with an extreme burden of proof as requirement, and have faith in the jury, with a harder requirement and harder burden, you can nail those pedophiles from the get go, and minimize the risk of innocent folks getting hit.