Is it socially acceptable to wear flip flops to work?

Faux pas or fashion-forward?
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Fit Flop F-MODE Leather Flatform Toe-Post Sandals

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M&S Flat Flip Flops

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Zara Thong Sandals

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The Row Dune Classic leather thong sandals

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Prada Rubber thong sandals

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Christopher Esber Jo Flip Flop