The most common falsehood about transit, the one that underlies most of the comments transit agencies receive and many of the worst mistakes in transit planning, is this: “Transit would be better for everyone if it were better for me.”
A special danger arises when relatively wealthy people take this view, demanding that expensive mass transit systems be designed according to their personal tastes. I call this mistake elite projection, and explore it here. Many poor transit investments have arisen from a too-small group of fortunate people assuming that everyone shares their tastes and priorities. They forget that to be elite is to be a minority, and it makes no business sense to design transit around elite tastes if what you really want are lots and lots of riders.