I'm not sure about the Western countries but in Czechoslovakia most of people used to shoot B & W photos until I would say mid 80s and then I would think colour started to dominate the choice of most family photo albums. Many continue to shoot B & W including me but colour would be 95 - 98 % of my photos nowadays.It really depends on the subject. I would definitely shoot more colour in North America and I would find more use of B & W in Europe. Places like India or China I think have to be in colour mostly.It all depends on personal taste. Both are great and both are part of many great pros.