The purpose of square dancing is simply to move the limbs, strong body, but a period of time was boiling, the reason is that there are some places where individuals put too much sound, disturbing the rest of the surrounding people and peace of mind, and therefore disgusted.
So, although the purpose is to health, but also must respect the rest and tranquility of others, put down the sound or audio on the body, wearing headphones dancing, both to solve the problem of their own exercise without activity venues, at the same time will not disturb others, should be a way out.
As for your dream appear girlfriend her mom dancing, fortunately in the dream, if the reality you say out, I guess the girlfriend will be anxious with you. But it's nothing, maybe it's because her mom likes to dance that you associate it with a dream, if so, that's normal.
Also, if you read it far-fetched, it seems like her mom wants to connect with people and reach out to more people her age.