Nowadays, people pay attention to health and go out to exercise after meals. Especially the squares around the community have become a good place for people to exercise. There are many uncles and aunties who dance in the square, and most of these people are I am raising children at home, so placing amusement equipment in the square can attract the children's attention and earn good income.
You can't talk about joining. You can find the manager of the square, rent a place, purchase equipment, and run it yourself.