The peoblem is funding as allways. Both of them are similar and both of them are very expensive. Especially if you look at the USA, what I’m guessing this post if referencing. Your network is so unbelievably bad it takes a lot of muny to build up anything. And even if you had intercity routes, you still need public transit in those cities to get there. Otherwise people have to drive there by car and if there already in the car they can just drive the whole way. And you would need huge parking spaces. Parking spaces (especially in the USA) are a big problem. The point of a train station is to be in the middle of the city. So directly between shops and stuff like that. Huge ass parking spaces don’t allow that, because you first have to walk some time to get to some “civilization”
(Yea sorry for the rant. Just can’t believe how fucked up the USA is regarding car dependency)