To be fair though, there's nothing particularly difficult or slow about a ~20km commute with a good public-transport infrastructure.
Until recently I lived about 20km away from my work, and my commute took about 25-30min: 10min walking and 15min on the train. I found this a very nice and relaxing commute; being on public-transport means you can read / browse the web / zone out, and indeed it's a valuable unwind time for me (the walking time is also hugely beneficial in this respect). [The same trip by car takes about 30min with no traffic, or an indeterminate amount of time in typical rush-hour traffic...]
Until recently I lived about 20km away from my work, and my commute took about 25-30min: 10min walking and 15min on the train. I found this a very nice and relaxing commute; being on public-transport means you can read / browse the web / zone out, and indeed it's a valuable unwind time for me (the walking time is also hugely beneficial in this respect). [The same trip by car takes about 30min with no traffic, or an indeterminate amount of time in typical rush-hour traffic...]