In Switzerland, it is compulsory for everyone to have medical Insurance. This is provided by a whole array of private companies. They MUST accept everyone, irrespective of pre-exisiting conditions, and they can't 'get rid' of you if you develop a severe and expensive condition. If someone cannot afford the insurance, then social services here will subsidise it (as in low wages) or pay the totality- if you are destitute (the case with a relative of mine who went travelling all over the world all his life and now come back in his late 60s severely ill and with no means!)...
Those private companies make their money on 'top up insurances' for private room, private care and operations in private hospital, choice of surgeon, etc. For those 'supplementals' they can exclude anyone who they assess as not being a good risk (eg more likely to be profit!) - we were both turned down for supplemental due to pre-exisiting conditions (including my gammy knee).
Being retirees with NO Swiss income, from the UK, we do not have to have medical insurance- our medical care is covered by the reciprocal agreement with the EU. We have to pay a 'franchise' of 300 Francs per year ourselves, and then 10% of everything up to a maximum of 700 francs. So this year, with my knee op, I've maxed out for this year for the first time and paid 1000 Francs.
With the £ to Swiss franc having lost 55% and more since we moved here 7 years ago- we can just about hold. If the reciprocal agreements fall, and we have to find another £600 or more per month ot pay for basic health care (+ the 300 and 10%) - and if Brexit cause even further falls in £ value- we would have to consider going back to UK. And we are VERY fortunate that we have kept a property there we can move to- and that the further the £ drops versus the CHF (Swiss Franc) - the more money we would make on the sale of our house here. The 55% we have so far lost due to exchange rate and perhaps more- would come straight back in our pocket if we turned out the procceds of house sale here back into £ !
How stupid is that
the fall in the £ would force a move, but make us rich!!! Oh the irony of it all. Expats here are very happy with the fall of the £ and their big fat Swiss salary now worth 55% more than a few years ago- they certainly enjoy their shopping trips to UK- and are also buying UK property in vast numbers.
Most expats to Spain and part of France, if they lose their right to cheap health care - and the £ continues to drop- will sadly have no choice but to return- and with houses almost impossible to sell in the parts where they live (the reason they got fantastic properties for much less than in the UK) - would return with very little, and need housing and health care, etc. Not sure if that answers your questions Mamie.