Amazon backs transit-oriented development of affordable housing
https://www.railwaygazette.com/technology-data-and-business/amazon-backs-transit-oriented-development-of-affordable-housing/59365.article
In the United States, where public transportation is not enough, it's difficult for people with lower income to live near urban railway station. That's because land price near that kind of station is so high that they can't buy houses in areas where public transportation is available.
In addition to this support, it would also be important to build new rail lines in suburban and rural areas.