I disagree. All insurance is a gamble And as far medical insurance goes as one gets older the 'Law of Diminishing Returns' becomes more and ever more applicable. Surviving serious intervention as one ages becomes much more of a struggle and can make life, for many unacceptable.
Which is why I prefer an Advance Directive (Living Will) to a medical insurance policy. (They're also much cheaper)
Albert Einstein understood this. He had a serious heart condition, but he declined medical intervention. 'I've done my bit, it's time to go' he said. Accepting medical treatment is not compulsory, it's up to the individual.