It's not. I really like public transport. It is cheap (I pay 22 euros a month unlimited), I can do something I like like reading or watching something. I don't have to worry about when my parking expires or having to return to a car. It's pretty ideal IMO.

You do have to ignore the people around yes but I don't find that a problem at all.

because it has other people on it? personally I find that sitting down and getting passively carried near to my destination is way less stressful than paying attention to the road that whole time - not to mention finding parking. You don't end up exactly at your destination, but a little bit of walking is good for you.

Assuming you live in a locale with a reasonably efficient system. I've heard some horror stories about north american public transport. Other countries tend to do much better with timetables and routes.

It really depends, I would much rather travel by NYC subway or Vancouver SkyTrain or Seattle light rail if my origin and destination are within walking distance. It's the least horrible option in many cases. Good luck to anyone's stress level and pocketbook trying to commute by car in much of NYC and pay $550 a month for parking.