@Ash I have seen pictures of those! They are super cool. I think that with modern materials (maybe using some sort of high temp FRP instead of ceramic) the fuse pin could be made practical, but it's way too late now. I would love to see this kind of design reincarnated but we have too many plug designs already, so whatever.

Interesting wattage comparison of different homes around the world, I didn't realize that modern 200A homes were so much more power hungry than others around the world. Also, homes in Israel have three phase? Man, that must be nice!

The problem is not only the fuse tube material

Plugs and sockets are designed to last for lots of plug/unplug cycles. The plug pins are fixed in the plug by having a large interlocking shape. No crimping

In any fuse of a more or less typical construction with crimped caps, the caps will be getting loose and coming off if it is taken in/out of the holder so many times



New houses and flats are now getting mostly as standard 3x25A, with the main cable of 10mm2 ready for 3x40A upgrade

Single phase connections for 1x25A and 1x40A are still available to order, but i think the main users for them nowadays are traffic lights, amenities in public spaces (like a ticket machine in a bus stop), remote metering/networking equipment clusters etc, not houses

In the 90s you would usually get 1x40A from the contractor in a new house, but the conductors for 2 other phases are already there for 3x40A. So a main breaker & busbar swap in your board, meter swap in the meter cabinet, and you have 3 phases

Before that in private houses you could get 3 phases at least as far back as 70s, in flats it was rarely more than 1x25

In villages often the private small farm was feeding from the house (with an underground or an overhead), so people were geting 3x25, 3x40 or more for having it in the ranch, the house just benefited from it on the way. Nowadays many of those village farms are getting upgraded with 3x100A and higher connections to support grid-tied solar installations on the farm buildings, so either freeing up the old service connection completely for the house use, or backfeeding through it from the farm to the house (with the old service drop to the house removed)