Also, when you change trams/buses along the way, any delay by a vehicle in the middle of the chain gets compounded instead of just being added to the time of yo

Also, when you change trams/buses along the way, any delay by a vehicle in the middle of the chain gets compounded instead of just being added to the time of your arrival, since it makes you miss subsequent vehicles. With a car, if you leave 5 minutes later than you should, you should arrive 5 minutes late, not 30. And public transport is so unreliable, the delays are pretty much guaranteed for every trip, so you need to add huge time buffers to all of them if you want to be on time.