The infrastructure in many big cities is so broken, daily existence is kind of painful. I live in Austin which isn't really even that big of a city but the infrastructure is so poor that commuting anywhere is very painful and there are a lot of road rage incidents as a result. Unless you live downtown there is no walkability and if you live downtown you need to work downtown. The public transit system is laughable. We have a metro rail that doesn't run after 6 and doesn't run on Sundays.