Bye-Bye, Bathroom Attendants?

Image Pat Velasquez, a bathroom attendant at the “21” Club in Manhattan. CreditAmy Lombard for The New York Times On a recent Wednesday evening the small, tranquil four-stall bathroom at the “21” Club in Manhattan was free of patrons. Still, Pat Velasquez, 72, dressed in a black blazer and matching pants, and black and white printed…