The things that hurt the most about Percy and Annabeth losing the gray streak is losing all jokes Percy and Annabeth would make.
“Jason your speech took forever to end to the point I got gray hair.” “Annabeth, you’re so stressed, look at you, you even have grey hair” “Oh Annabeth! You’re 21! So old! look at that grey hair” “Damn Percy, college has been so rough on you, you even got grey hairs”