When you link the cars together, they usually switch to a hub that's a 10-15 minute walk from your destination instead of your destination and the compartments are occasionally shared with unstable and violent people, which while possibly "efficient" in some metrics, are downsides that many people would rather avoid. Personal compartments are a real differentiating advantage.
A quaintly American complaint. A 10 minute walk being an issue is very a learned helplessness my fellow Americans suffer from.
But unfortunately the 10-15 min walk is only possible in a couple cities. most Americans day to day experience of public transit is spaced out buses that don’t work well for single family sprawl and strip malls parking lots where walking is treated as undesirable. Car oriented rather than people oriented urban planning (or lack thereof) is the original cause.
Door to door shelter and climate control >>>>>>>>>>>
I even got a heated jacket this year! Talk about climate control.