Financial planner Bob Brinker used to tout this approach 50 years ago on his national radio simulcast. I agreed with his approach, i.e. sleep well at night, no worries. He also said when you get to the point where your assets are throwing off enough income your sole worry each day is do I sail north or south on the intercoastal waterway!
RIP BB. He died last fall. He gave great advice to the unsophisticated investor. If Ibonds were hot, he suggested buying them, etc. He was also pushing one of the federal credit unions for high returns on CDs.
I have been in the land of Critical Mass now for several years. I practically worship the day that Cal football did not play and the radio offered Bob Brinker in its place.