More hair talk, gasp!
Actually, that Weg would shave off grey hair rather than getting used to them is pretty relevant to his character. He's smart, charismatic, wise, and dedicated... but none of that makes him immune to denial and wishful thinking. Eventually, it could come up about something a little more dangerous than his appearance.
Ah, ok, I missed this page, but now it adds up how they went from haircuts to gardening!