I.e. switching jobs (or having none) doesn't affect whether a hospital will treat you or not.
From an american perspective, that sounds like some sort of unattainable utopia.
When I was out of work in the UK I signed on to keep my NI record up to date as they only account full years
Average for EU countries is ~50 weeks. That's not long if you do not want to work for money for the rest of your life.
I.e. switching jobs (or having none) doesn't affect whether a hospital will treat you or not.