Could leg and wrist weight hurt you?

Im 14 and was into kickboxing for a long time.Im thinking of turning pro when i grow up so my question is could wearing leg weights hurt me? Like stunt my growth or damage my ankles, or would it just get my body use to the new weight(making me faster and stronger when i take them off).Same question for wrist weights could they stretch out my arms or something? Ty in advance :D