The debate:

“I can always draw eyebrows in!”

“Eyelashes protect the eye better.”

“I have to pluck them, anyway. A little alien look never hurt anyone.”

vs.

“You can use fake lashes. You can’t paste on fake brows.”

“Missing eyelashes would probably be less obvious than missing eyebrows.”

“I sweat a lot and don’t go trekking through deserts very often. The eyebrows will probably come in handier.”