Shoes as the symbol of adulthood?
So Charlie gives her some heels for her birthday and putting them on is all sexy for both India and Charlie... so we get that these heels are a symbol of adulthood for India and her sexual awakening.
Then when India is leaving the house at the very end of the movie, we see she's taken most of her mother's shoes and left her various sneakers. Is this just solidifying the above? If she hates her mother so much, why is she stepping into her shoes? The metaphor seems slightly confused...