Younger pilots who worked in another field before aviation might be recent enough in it to get back into it, particularly if there is a shortage in that area. Cabin crew with nursing experience would be well placed as the shortage of nurses can be such that the health authorities actively seek out and retrain those who have been out of the profession for several years.
Once your past 50 though, your past it. Earlier this year I was considering my options should I be laid off, and they weren’t that numerous. Driving jobs inevitably cropped up or possibly some government job with the usual public service benefits and job security.
Too old and out of condition for anything really physical and not really up to learning an entirely new skill set, best left to plod along for another decade until retirement.