Dance makes you happy. It puts you in a good mood and is an expression of joy in life. We dance because we are happy and want to live out the joy. We dance alone in the living room or with a friend, because dancing together is more fun.
The feel-good principle is about style and comfort. It is important to every dancer (professional, hobbyist) to cut a good figure on the dance floor and look good doing it. The shirts should be an eye-catcher and offer freedom of movement so that every woman/man feels comfortable.