Should I Shampoo my hair if I only use leave in conditioner???

[ZygomaticIsaac]

I have 1B hair type or straight hair and I only use water haven't shampooed in 3 weeks I don't use hair products besides ofc the leave in conditioner but I don't know if I should shampoo or not

 

[ZygomaticIsaac]

My hair doesn't look bad tho

 

[idekwhttosay]

show hair nigga

 

[hatefoids666]

show hair NOW just scribble over ur face boyo