Sock or not to sock

The leading article in The Times today is "Fashion Flop". David Cameron was seen on holiday in Italy wearing black leather shoes without socks !! As we know sandals are for children, loafers ( again no socks to be cool) for teenagers and adults , but never sandals with socks, and now never black leather shoes without socks. Had David forgotten his socks or was he making a fashion statement ? What I do know is that it must be very uncomfortable wearing black leather shoes on a hot day without socks, his feet must have been rather moist.