While I am against this outrageously stupid and little thought out plan, I still have to be honest and admit that if it did go ahead in some fashion, and I sadly believe it will, I still wouldn't see it as the end of the world if I did have to go in person to collect my knife. In the big picture of things in life it is a very minor thing.
The real trouble here is for online shops and makers. Online shops would probably struggle and the only makers who'd survive, at a big hit, would possibly be well known makers for Woodlore, Bear Grylls etc. or a maker who is a constant supplier to a business or maybe an individual company like some fancy gunmakers as an example.