Odds of Hanging On
In this (baby-)booming job environment (see what we did there?), your job will likely be safe—assuming you don't want out of the game. But once you're in, the physical and emotional demands could start to wear on you. Most people leave after a little while to get more training or find another job entirely. So, the odds of hanging on are good. The odds of wanting to hang on are less good (source).