I'm glad I don't live in California (or America in general) but this is such BS.

I don't think we will have much of this in Europe because guns are pretty rare here and so is ammo. We just don't really have gun problems except with organised criminals but they don't 3D print them, they just buy them.

But anyway, 3D printing isn't rocket science. It never was and it sure isn't now. Anyone can build one in their garage and many of us have in fact done so when it was a new tech. If someone wants to be printing gun parts they are going to be printing gun parts.