I'm south west bro, the only places I've ever seen dividers are spoons establishments. Also down here toilets are small and the pubs are busy, fairly common to have a line of blokes with no issues taking a piss next to the next man.Semi true about the UK. Older buildings tend to have no dividers and newer usually do build them in. Unless it's really full or in a pub I don't see people do shoulder to shoulder. Maybe this is a London phenomenon but as far as I know
What area are you talking about?