Inspired by Japanese art of scalp massage, the Baldy combs massage the scalp and promote the release of endorphins, (the) so-called "happiness hormones" counterfighting stress and anxiety, promoting a feeling of deep relaxation and well-being . A Baldy allows heads without hair to enjoy the pleasant sensation given by combs’ teeth while sliding  through the hair.
Why on earth should anyone without hair be deprived of such a pleasure?