Now I understand there may be a generational gap at work here, in the sense that for a generation that came of age with the computer, it does make sense to think "does this look better in colour or in black and white," because it grew up with the knowledge that there is a "colour on / colour off" switch that one can use at will (which of course holds true for the older generation who adapted, by choice or necessity, to the new technology). This is not a critic, just a reminder that technology has an influence in how one thinks — even creatively. Here too we are dealing with the knowledge and understanding of the possibilities of the medium. Just differently.
So, yes the technology had dictated the use of black and white vs color in the past.
What about now that the majority of new generation chooses to work with digital where by default we are "forced" to choose color as a primary medium (forgetting the Leica/Pentax monochromes). What should the correct approach be?