If we wait until areas have high population density, it's harder and more expensive to build through it, and people don't want to fund the project. If we don't

If we wait until areas have high population density, it's harder and more expensive to build through it, and people don't want to fund the project. If we don't wait and want to build now, people don't want to fund the project due to lack of immediate ridership. Funny how we keep building roads, and expanding highways, while saying building rail infrastructure doesn't make sense because there aren't enough people to use it.