Yep, Toll Bros buys a horse farm and makes half acre mcmansions. There are some big properties that have covenants that prevent it, and the zoning in my township won’t allow new subdivisions less than 2 acres, and we have some great municipal parks which will never be developed. But that means everything is spread out to make public transit untenable. You need a car to get to the nearest train station, and then you need a car when you get off the train at any stop outside of the city.

There’s no one-size solution to combat sprawl. High density housing makes a lot of sense some places, and not so much in others.