The average fees of a British boarding school are £37,000 a year. Adding twenty per cent VAT brings that up to £44,400.
In Portugal the cost would be about 30,000 euro = under £26,000. Children can attend established 'international schools' to learn in their own language.
But with the prospect of the Starmer regime lasting for a decade or more, enterprising private schools might consider setting up their own establishments in or near Lisbon, Porto or the Algarve, and transfer their teaching staff there. The expense of moving and rebuilding might be more than covered by the sale of school lands and buildings in the crazily overpriced UK property market.
Nice weather, good food and the opportunity to rub shoulders with the citizenry and become fluent in a foreign language.
And the chance to escape the G*d-awful British National Curriculum.
Regular, cheap short-haul direct flights each way. Assuming there's any reason to return.