It’s all about money right now. If you let the people make anything then manufacturing companies, farmers, and a whole slew of other industries will go out of business.

That has to be offset by something, which will likely be the distribution of raw materials. Imagine the “carbon guy” showing up to deliver your weeks order of carbon for the fabricator.

As mentioned elsewhere energy is a massive aspect of this, these machines will likely need a lot of energy to work. Not sure you’d be able to just plug it in to your wall socket. That will likely mean the manufacturing companies will use them first as they’d have the resources to set up the energy requirements. But the fiat may be so high that just paying people to do it is better.