Say what, between consenting adults it is whatever goes. Now Doc and I get grilled for her being too young and me for being too old. Her response is always hilarious, he is in shape, gets it up and keeps it up
Understanding can be subjective like that for sure. Age having any correlation to validity I've always found to be quite a common misconception. And if you disagree it must be because you're young and just don't get it.
People who ask someone's age are just looking for a numerical measurement to compare themselves to. And either find the answer makes them feel superior or inferior. When in reality its just an unimportant number! That doesn't tell you the real story about a person. Whether they are kind or hateful, cold or warm, smart or clueless, shy or bold. So many more important ways to judge a person's worth!