Comment by lisper

> Nowadays carriages are split between 'normal' and 'quiet'... And the number of quiet carriages seems to have increased over time... It's like there are forces in society which try to prevent people with different experiences from sharing their experiences.

It's no great mystery. Social interaction is a skill that requires practice and effort to develop. Interacting with new people is risky and occasionally painful. Back in the day the punishment for not developing that skill and taking those risks was boredom, but nowadays you can just crawl into your cell phone to while away the hours.