I'm heading the same way, partly due to prostate drugs and some of the local massage girls admit they're not keen to see me because they know their wanking technique doesn't work with me.
I've got one particular regular Thai lady who knows I can't orgasm, but bless her it's almost become a personal challenge.
She'll try OWO, pussy slides, prostate frigging....the lot.
In the end I have to gently hold her hand and just say it ain't gonna happen, and she's really disappointed.
However I also have others who I feel get frustrated when their frantic wanking and ooohs & aaahs aren't working.
If I'm making a new booking I've got to the stage where I'll usually tell her my age (less VAT of course) and also forewarn her before she starts her assault on my cock.
I'm a lot older than the OP, and do sometimes notice the expressions when I walk through the door, which can range from mild surprise, shock, compassion or admiration.

I've felt snubbed occasionally, which I've wondered was age related, or possibly on suspicion of a negative review.
Not answering phone/text, saying they're fully booked etc, but that's very rare.
If they don't want my money and huge cock to play with that's their loss.
