This would certainly help the matter greatly, and I'd go this route over no action at all, but I don't know if it's the answer.
Like I mentioned before, I don't believe any amount of training from some humans will continually and reliably override the pitbull genetic behavioral traits. No animals behavior is derided 100% from training, genetics play a big role too. A training class aint changing how their brains are wired.
Most of them will be fine their whole lives, and some could be a great dog 99.9% of it's life but in one setting. The issue is when they slip up, the times their breeding influences their behavior in a violently aggressive manner, usually ends in catastrophic results. A local kid or granny gets their flesh ripped to ribbons as they are mauled and die in a one of the most horrific manners possible. Not even close to worth it for a fucking pet animal. It's that simple, this animal doesn't belong as a family pets walking around town. The risk is too high, no one should be chewed to death because someone wanted to keep a creature bred into existence to fight, maim, and kill, as a fucking pet.