KK PF 6 max....is folding even an option?

I usually play in the 100 or 200 NL 6 max games on Party and have found myself with KK all-in pre-flop against non other than AA at least 4 or 5 times in the last couple of days. Regardless of their stats or playing style, I have felt confident every time throwing my money in with KK. Should there even be a consideration for 100 BB fold of KK at these limits?