Ummm... It is YOUR hair...I should cut my hair
If you want to cut it, giving it to charity would be a nice thing. If you want to make art out of it, that would be cool too. But, Geez-o-Friday, it is your hair!
That's like when I was a vegetarian and someone told me I should eat meat every now and then so "if a cute guy wanted to take me out for a steak dinner, I wouldn't get sick."