I think the article gives us a very shallow take on a problem. The first question should be "what is an age perception". The article even calls this perception

I think the article gives us a very shallow take on a problem. The first question should be "what is an age perception". The article even calls this perception a bizarre thing (and I agree), but then it throws the question out of the window. Why people think it is a good idea to learn how to guess age? I think, it is because we need to guess age of others to fine tune our communication skills. If it is so, then probably we apply this very guessing abilities to ourselves and get the wrong answer. Which is not very surprising: we see ourselves differently, we see ourselves from the inside, so skills learned for measuring others do not do a great job. So there are some traits, that can be measured based on our appearance and behavior, that are used to predict age, but they looks completely different from the inside. What are they?