These shoes and clothes for birds are a metaphor. They reflect the human world, I would like to raise the question that if we were all birds whether we would chose to fly or sacrifice our natural ability to fly, in order to put on a glamourous outfit.
If I am a bird, do I need the clothes ?
If I am a bird, will the "clothes' be the shackles to hinder my flight?
If I am a bird, when I wear the "clothes", do I obtain freedom or do I get burdened.