@Toodaloo1567 "People who would not be able to afford premiums, or are in poverty, would receive their care for free anyway."
Which is the system the UK already has - except nobody recieves healthcare or social care "for free" because almost everyone has paid into the taxation pot at some point in their life through income tax, National Insurance, VAT etc.
"I think people are confusing the concept of an insurance product. What I propose would be similar to car, house, life insurance."
Anyone who believes that a lifetime heathcare/care insurance would ever be provided by any insurance company, and who compares this type of insurance with car insurance, clearly has no concept whatsoever about how commercial insurance works. The only possibility is a national scheme, funded by all of the population - which is what every developed country in the world has in one form or another (with the possible exception of the USA).