I'm in my late 50's and only had a problem once, but did not know it until reading the wg's blog and comments she made about older men over 40, she was 21. I do have a preference for wg's in the 30 - 50 age range and generally feel they like older men who don't go at it like a bull in a china shop for the whole booking but treat them with a bit of respect. At the end of the day, as has been said before, they are generally only interested in the colour of your notes in your wallet, not your age.