Why recommend both the 40mm/2.8 and the 50mm/1.8? Seems like their function overlaps at least in terms of focal distance. Is the 40mm recommended just to have a fast focus, walk around?
Yeah, a 40mm and a 50mm is not a very good recommendation... Especially when the person has no lenses at all.
I'd recommend just the 40mm probably. The build quality is the same on each of them and at f/2.8 and above the difference in image quality between the two is negligible, but the 40mm is a lot more convenient to carry around. And to anyone who would say "but the 50mm is 1.8 and the 40mm is only 2.8!" the 50's image quality is pretty bad below 2.8 anyways (and the 40mm is fine wide open).
Just my two cents.