What’s bad for the follicles if a girl’s hair is too long?

Too long hair is not bad for the hair follicles.
Hair is an appendage of the skin, which includes the hair shaft and the hair root, which in turn contains the hair follicle, the hair bulb, and the hair papilla, of which the hair bulb and the hair papilla are rich in blood vessels and nerves. Hair length does not directly affect the normal physiology of the hair, but when the physiology of the hair is abnormal, it may affect the growth of hair.
Under normal circumstances, hair grows from the hair follicle, and through the hair follicle from the body inside the absorption of nutrients needed, when the hair follicle is damaged, hair growth will be affected, can be manifested as split ends of the hair, hair yellowing, and even permanent hair loss.