Maybe it’s different for ‘older’ women, but I would be suspicious if a much younger woman said she was interested in me. I can’t get women my own age to notice me.

I have an admirer who is a good 24-25 years younger than I am, and I would pursue her in a second if she were single (there's always a catch, isn't there?). I draw the line when the age difference can be expressed in double her age or more. What in the world would we talk about, after she got done laughing at my old body? You're right, it's generally not the best idea. But you never know until you try, right?

I would say something along the lines of: "I appreciate your interest, however, I do not think it will be something that will work out in the long-term. I just don't think we really do have much in common."

there are so many factors to consider in this question. I think that, for you as a lady,you would have less negative feedback to deal with from those around you, than I would as a man if I dated someone fifteen years my junior. But, aside from the social implications,as long as the other person is mature, and the relationship is healthy, I don't see any issues. But each of those are huge questions all on their own, andhard to gague while being the one involved.

I know - not any real help here - but its a question that really only those involved can answer.