For one, being independent, not relying on a schedule. Not worrying about missing their transportation and catching a later one, then being late to the arrival of their destination.

This is my big problem with public transport. It might be an issue of funding, but this sort of scheduling gives me a huge amount of anxiety. I would rather drive and know that I can leave when I want, and that any delays won't be a problem, than to worry about the making it to somewhere at a specific time lest I miss my bus/train/plane.

And the more modes of public transit we add to the journey the worse my anxiety. If any of those connections is delayed or late I have no control and will miss the next leg of my journey, which will push all the other steps around and suddenly I have to get a hotel or something because there's no way to get to where I'm going until the next day.

At least if I'm caught in traffic I can try to route around it, or I can leave a earlier or later to avoid it, and the person who's affected by these delays is the one who has some power over mitigating them. If it ends up that I'm driving overnight I can pull over and sleep in my car for a bit and then keep going.