I wonder why sex is usually treated as an exceptional activity which must be judged differently from every other kind. Most people acquire job histories over time as well as sexual track records, yet few middle-aged brain surgeons are permanently stigmatized for having flipped burgers in a part- time job as pre-med students. No one wants to be defined for all time as they were in the past.
This quote is from an essay called, "Retro-Shame, or the Persistence of the Past." I don't have much to add, except that I really like this point.