I agree with the general principle, but it's very easy to overdo this approach. The difference between delegating and pawning your decisions off on other people isn't always easy to define.
Sometimes I'll say something along the lines of "My personal opinion is X, but this is your decision. Do what you think is best." You also have to be careful to prevent the Abilene Paradox from happening: http://en.m.wikipedia.org/wiki/Abilene_paradox
My wife is sometimes angry for me, because I tend to use similiar algorithm for less important (for me) decisions. It was OK when I was single, now it turns out sometimes such decisions are very important for her, and even if not, it's tedious when every single unimportant decision is left for one person in the relationship.
Like - which color should the wall be, which restaurant are we going to, etc. So it's not always good idea to defer such decisioins to others, because their "decision energy" is precious, too.
The issue doesn't exist on desktop Chrome even if you make the window the same width as a phone is wide, they just don't fully support android browser.
