The reality with STEM is that you have to be self taught - you don't learn to be a software engineer at school. School programs barely teach you the foundations. University is slightly better, though still extremely elementary. 90% of ability by the people we need is because they picked up a piece of technology and taught themselves how it works. All the people I work with have almost identical stories of getting a screwdriver and taking apart things, installing hacks, endlessly reading and thinking about STEM ideas. In any country that is rare. The idea that we'll be able to staff a tech industry from British schools is beyond naive - it's just right-wing bullshit about darkies coming to take our jobs.