With the technological capability its clear that we could Work from home - WFH and not be in the UK with no detriment to the employer.
A few years ago a college of mine was actually working from home, or rather, from Lisbon, and everyone was non the wiser, they knew they'd need to be back in the office at some point so took that into account.
However, going forward, why can employers not take employees work-life into account and accept that working from abroad with a UK salary would greatly improve employee's mental health and wellbeing.
Is it the tax implications? Maybe in the future we'll progress towards it?
I think the flight costs would be cheaper than a weekly train 112 miles from the North East of the UK to Manchester for me if I were the re-locate from the north west.
It's not as straightforward as people like to think.
If the country offers a Digital Nomad visa then it is simplified somewhat.
Some implications/complications:
Contract & Employment law - under which set of rules are you bound
Corporate Tax - in many countries, your employer also has a contribution obligation in the country in which it is operating, and you working there remotely will count in a great number of those cases.
Income tax - If you are living in another country, in the majority of cases you will be deemed tax resident there. Some countries take a stricter view on this, some use a 183 days roller, etc etc - it isn't standard and you cannot assume
Workplace insurance - You are not working in the UK, how will this work?
Health insurance - Which pot are you paying into and how?
Nationality - If you are British then you cannot simply move to another country without a Visa and/or residency permit of some description. You can only stay in the country for 90 days, in most cases you cannot work there, and you cannot just hop back over a border to reset your 90 days either.
I'm not trying to put you off, but having been there done that it's a minefield in all honesty.