I'm 58.
Clearly age isn't a hot button issue for me but according to some of my writer friends it should be. They claim I would be better off confessing to serial murders than confessing my age in a public forum. They say I'll regret it, that my career will shrivel up and die the second readers and editors discover I'm no longer the thirty-two year old I was when I published my first book.
Don't bother doing the math. Unless I sold my first book when I was five and married while still in utero, there pretty much has to be an AARP card hidden away somewhere on my person.
Like I said, I'm 58 and I don't care who knows it. However even I have to admit the case against full disclosure might be more compelling than I would have thought.