Now that's almost a step too far
Imagine the crap we've had to put up with here over the years.
Thanks to being so closely aligned with Britain till the fifties, all our fasteners were Whitworth, which uses a great (radiused) thread form, but stupid, stupid, stupid head sizes.
Then most fasteners went towards NC and UNF, so mostly the bolt threads were compatible, although Whitworth heads carried over far too long....
There are still a lot of Whitworth bolts and nuts around, so we have to have AF, Metric and occasionally Whit sockets, ring spanners, etc.
I've become lazy and generally jam a metric socket onto a Whitworth head to get it undone, then throw the bugger away when working on stuff.
I won't even touch on the really old stuff that crops up from time to time like BA, BSF, etc