A bunch of the University of Kent cohort of my age have left the UK: all skilled IT people, and over several years but accelerating recently the friends or friends-of-friends have all found perches elsewhere.

Some people did some work about insulating oneself from supply chain wobbles about ten years ago. In the fervid atmosphere of 2010 it didn't seem quite implausible, and seemed quite important to keep three months' of food and six months of any prescriptions to hand.