Are "No Shirt, No Shoes, No Service" rules discriminatory against nudists?

Scarecrow13
We have seen many fights against discrimination against racial minorities or LGBT people by businesses, but why do we not see anyone trying to combat discrimination against nudists such as the "no shirt, no shoes, no service" polices? What if nudism is your religion? Do businesses have a right to refuse services, and if it depends, what is the determining factor?,
Discriminatory sign
Discriminatory sign
Are "No Shirt, No Shoes, No Service" rules discriminatory against nudists?
13 Opinion