All the characteristics you stated here for barbers shop aren't found in my environment barbers shop. It is found f when men are playing games, draft(checkers) or ludo . It's there men discuss men's talk and not in barbers shop.
Though for the female folks, there salon is and has always been the headquarters of talks, chitchat and women talk.
Good night from here. It's 9:16pm.
Interesting @botefarm! I think I've seen men playing games and drinking/chatting in travel shows about Nigeria. I think it might have been Anthony Bourdain's show No Reservations. Hope you're having a good Friday!