My friends at school keep telling me to get my hair cut so they keep pulling it?

hi im a male and i have middle length hair just below my neck, top of shoulders and my mates always pull my hair really hard and i heard that it could damage ur follicles and scalp. 1day after the top-middle of my scalp is hurting and hurts whenever i move my hair or gentle tug it at the back when brushing it, WILL I GO BALD??