Switzerland is an EASA Member state so doesn't compare to the new situation facing the UK.
Have look at EASA validation or conversion requirements and it will scare off most people. CPL conversion requires extra training of 7-25 hrs depending on how many hours you have. CPL TKI as determined by a HoT or if wanting to go for an ATPL do a modular ATPL course and resit all exams. Then for an IR a minimum of 15 hours instruction. You'll also need to do a CPL and/or IR skills test. Validation of a CPL requires a minimum of 700 hrs depending on what you want it for.
If a student signed for a school to gain an EASA "frozen" ATPL, then the school has an obligation to provide that course. While the UK might be aligned with EASA regs, EASA doesn't have oversight and there is nothing to stop the UK from diverging. So EASA doesn't have any choice and neither do flights schools, they want the biggest pool of potential customers.
Last edited by Edgington; 5th Nov 2020 at 18:49.