I ingest so much kale that my husband thinks I'm addicted. True, I do mix some with brown rice for lunch almost every day, sneak this green wonder into my family's nightly salads (they still can't tell the difference between kale and lettuce), and, yes, a bottle of my 'green juice' is with me at all times.
Not everything in life is a 'given.' We can never say with complete certainty that we'll be in the same job, relationship, home, or state of health, as we are right now. Life is fraught with change -- both wanted and unwanted, good and bad. This is especially true for those of us who are being squeezed into that sandwich between our children, aging parents, and everything else that life has to offer.
It goes without saying that the post 50 job-seeker has plenty of experience. Nevertheless, although you're an applicant of maturity, you won't want to market your experience level as the cornerstone of your job search. Employers have issues that need to be dealt with, projects to complete, and problems that have to be resolved now.