Lord Mormont, who we once thought would guide Jon Snow as he took command of the Night's Watch, was stabbed in the back by his own men after surviving a fight with White Walkers. If you're old, don't take a bunch of men where they don't want to go and to a guy who's gonna withhold food. Hungry men will kill you.
Tis a big and beautiful world. Most of us live and die in the same corner where we were born and never get to see any of it. I don't want to be most of us.