In a train I have to physically go to the train station, park my car, walk and find which train/subway to hop on, sit next to other people on a crowded, confined space, possibly get off and get on another train going to a different destination, get off the the train and walk/ get a rental car to where i want to actually go.

Compare the above to hop in my car, drive to the freeway, turn on self-driving, turn off self-driving once i get off the freeway, find parking near where i'm going and walk in.

As a society, we've done alot more in the name of convenience.