Hair On My Ears, In My Ears

Speaking of hair, since when did tending to the hair in my ear(s) and on my ear(s) become a necessary part of my personal hygiene?  Sometimes I catch a hair growing a centimeter or two off the outer edge of one my ears, disguised by the hair on my head and suddenly exposed by a haircut.  Nobody mentioned that I'd have to be concerned with this as I grew older.