It’s not that simple. For trains to be a complete solution you need walkable cities, and high density transport-oriented residential construction near stations.
This is almost diametrically opposite to parking-oriented cities and sprawling suburbia.
This is almost diametrically opposite to parking-oriented cities and sprawling suburbia.
Note that this holds without even having to mention that holding the ability for millions of people to be independent and mobile without needing to purchase and maintain a vehicle against a niche and expensive hobby is ridiculous. But there's no need to bring that up because we can have both.