In Volume 1 of The Confidential Guide to Golf Courses, Tom Doak published that.

“Carrying over the tradition from the club’s origins on Wimbledon Common, where golfers shared the ground with footballers and picnickers and nannies out with their charges, all golfers are required to wear red when playing so as to warn the neighbors. There are a couple of good par-3 holes, but there’s also good reason that Wimbledon is more of a tennis town.”

Royal Wimbledon received a score of 4 out of 10 from Tom Doak, while two of his co-authors awarded a 5.