This is a trait that you can easily find in every one living in a society. Someone inside, a different one outside. Family is where we express ourselves freely and let go of all the make belief personality that we exhibit outside. It is true that every person is different at home but that is just because it is only our family and best friends who accept as who we are . They do not want to change us nor do they want us to adjust for them. At home we are at our best, our dressing is comfortable, we are relaxed, we behave the way we want, get angry with anyone back home, laugh when we please, make as much noise as we want, take longer hours in the shower, sing aloud when we want to , home is where we live as who we really are and that is why we complain the most at home.
But when we are outside we have to be dead careful that we don't get into anyone else's way due to our character or behavior. No one likes to be notorious and so we put on a different face.We restrict ourselves from eating a lot, from laughing out loud, singing when we want, speaking whatever we like, no we are conscious about who is around us and that we don't bring up a bad reputation of ourselves. We like to pretend that we are at the best outside.Even when we are smiling to someone we will be steaming with anger inside. But at home we express ourselves out. When we enter home we leave out the protection of make belief us, the conscious us and we just be ourselves.
Just like we leave outside our footwear so that no dirt enters home, we also leave behind the fake side we have so that we are true and ourselves at home.
Even in songs where the hero sings to his lover to leave behind the floral footwear and step inside with your bare feet into my crafted mansion, the only meaning is to leave behind the pretension you have for the rest of the world and just be yourself when you come to me , that the hero will accept the true self of her even with any ornaments of behavior or pretension the world prefers to see her with.