Why isn't there any sinks in the 43 bathrooms at the biltmore estate?

The Biltmore Estate, built by George Washington Vanderbilt II in the late 19th century, originally featured bathrooms with only bathtubs and no sinks due to the era's Plumbing limitations and the design preferences of the time. Instead, washbasins were often placed in nearby bedrooms for personal hygiene. This approach reflected the social customs of the period, where privacy and convenience were prioritized in the home's layout.