Re: I've heard this song someplace before.
I have a very physical sort of job, which pays just okayish, and leaves me hurting some way or another at the end of the day. It's not a job for everyone, and there's a lot of turnover. A couple younger guys didn't even last two hours, and walked off the job at first break. I continue to work there for an important reason: they don't care how old you are.
I've had potential employers and employment agencies talk me up a positive game, "Blah-blah-blah, oh yes, you'd be great at this job, do call or come by next week."
Next week, I stop by, and get a, "what the fuck are you doing here?!" look, they get very uncomfortable-looking, say, "Hey, I have to return a couple phone calls, then we'll talk. It'll just be a few minutes," and they scurry into their office. Twenty minutes ... an hour ... and hour and a half later, they come out, don't invite me to their office, but keep me standing in the reception area. They start by talking in polite, meaningless generalities, then finally come round to, "we don't think you'd be a good fit for this job, but thanks for your interest. We'll keep your resume on file for any opportunities which come up."
I'm polite, bathe and shave daily, have no tattooes or body piercings, etc.
There's nothing I can prove in a court of law, or to any of the various government agencies tasked with preventing age-based discrimination, but it's there.