It seems to vary between two extremes - people who do it and people who will only reluctantly visit a doctor when at death's door. I think the former stems fro

It seems to vary between two extremes - people who do it and people who will only reluctantly visit a doctor when at death's door. I think the former stems from annual checkups in childhood. Some insurance providers/employers, I suspect for preventative reasons against the latter category above, have started incentivizing annual physicals, so this may shift, but the whole US healthcare system is in such flux I wouldn't put money down on any outcome.