I know I'm getting old from small signs like:
- I like mentoring newcomers even fresh graduates, explaining them everything they have to know, answering all of their questions if I can (I had some really bad mentors before as newcomer)
- These newcomers always learns faster than I expect and shortly they works faster than us
- On the other hand senior members asks my opinion about some decisions or technical issues even if I barely know more about that topic. (Did I look experienced somewhat?)
- I hardly take overhours and I discourage fresh graduates to do. (I did enough overnights already in my life)