In agriculture, you have farmers complaining about no labour whilst they are failing to use machines that could replace the labour (and, unf, agriculture in the UK has turned into one massive IHT avoidance scheme...so most of the operators are clueless). In retail, you still have companies doing multi-day interviews with logical reasoning tests, team-working tests, problem solving exercises for shelf stacking positions (which, btw, they are getting people to do for free with no training on welfare-to-work programs).
I am not sure if I agree with the original post. Is it completely off though? No. Not at all.
And the EUR goes a lot farther in say Berlin than the GBP goes in London these days (see rent, eating out prices etc)
With the exception of Switzerland.
He's in for a harsh reality.
Most people are really underpaid and would be shocked to learn what is available. If you went to the right schools with the right internships you shouldn't ask for anything less than $225k to start off with and on the more experienced side, I know a few dozen engineers in NY with total comp packages at or above $450k.
I worked in Finance before I worked in Software and the situation was much the same -- top talent came from London for higher salaries.