I would endorse everything Wiley has said. I have just reached 60 and have been in aviation for 38 years. If you had asked me when I started if I would be happy to retire at age 60 I would have laughed at your silly question. However, things have changed beyond anything I could have imagined: poor rostering to sqeeze the max out of the min, being treated like a piece of crap by security, especially in the US and UK are but two of the reasons that I am now very happy to say "no more". I will miss flying and my friends badly but it just isn't worth it any more and I feel so sad that the young aviator today will never know the joys that we old farts knew in our heyday. I wish them well and that things will, at the very least, not get any worse.