Why are they so obsessed with our hair?

Especially the nmoms. I am a female with very long and thick hair, almost touching my butt. And my Nmom literally HATES it. She always tells me "you should cut them", "a bob would look so much better on you". She HATES when people compliments them. She always replies to them "Well thanks to me, I had beautiful hair when I was her age too", "she gets it from me". When I was 8 yo I had my hair down to my butt and one day she took me to the hair salon, she whispered something to the hairdresser and all the sudden my hair wasn't even touching shoulders anymore. I cried when we left. School picture was the next day, I still have the photo, it looks like I'm wearing a motorcycle helmet.

What about you? Does your Nparent have an obsession with your hair?