Arrow has been resistant to some of the sillier elements of Green Arrow’s inherently silly world (only ever got the punching glove arrow once), but you wouldn’t think that it’d take six seasons for a goatee to show up.
A fake goatee is a lot more of a disguise than some grease over your eyes, which is what Arrow originally did.
Whatever the case, comic book fans are likely happy that the facial is finally on the way.
The idea of including the goatee came up when discussing what elements the Season Seven costume would have, considering the situation that Oliver finds himself in by the end of Season Six.