While her brother Timothée lives in Hell's Kitchen, New York, where the sibling pair were raised, Pauline has lived in Paris for the past seven years. She's made the city her home and shared that some of her all-time favourite landmarks are in France. Despite settling down in Paris, Pauline told Harper's Bazaar that she's grateful that she grew up in New York. She said that being surrounded by neighbours who were preparing for auditions helped her clarify her future path in entertainment, noting that "it made the idea of pursuing a career in the arts feel normal to me."