I remember reading an article online 10-15-ish years ago (back before wifi "worked") on someone rewiring a house in the US where they said their spec was power socket every 2 feet and ethernet socket every 6 feet on every wall. This house may have had the same spec but then may have been influenced by "accessibility" rules in UK building regs which means can't have (all) sockets at floor level so ended up duplicating many of them with a socket in the place where they'd use it plus another at the height that building regs required. As someone else had commented, the real issue is that all the sockets are different colour from the walls.