There are lots of grocery store and retail jobs, where people must stand on their feet all day, that will hire people who are older or who may have a gap in employment.
But it's nearly impossible to get a corporate job or any job with benefits when you are an older job seeker. It's beyond frustrating, and I'm in that boat now. I have a gap in my resume for a health reason (and stopped trying to find employment during Covid), and I'm having a hard time getting interest from anyone.
I had a successful career, but am now perceived as old and out of touch. I'm not able to stand on my feet all day. And if I did have a job like that, I would have to pay for my own health insurance. The subsidy I receive from the healthcare.gov marketplace (I regard the ACA as one of the most consequential, positive legislative victories in my lifetime), will be quickly phased out if our household income increases by just a bit, and deductibles will go up by thousands if I bring in just a couple more thousand dollars per year.
A lot of people who have sat at a desk for most of the their careers have back problems. I do. I would need surgery in order to attempt standing for eight hours. My legs start to go numb after about 30 minutes or less of standing. I don't know what to do, but will have to figure something out as I don't have a lot of runway left.