How The Average U.S. Consumer Spends Their Paycheck, article.
Reading: 0.2%. Tobacco: 0.7%.
And about 17.6% on transportation!
That's a nice savings on working from home. Add to this the time you spend sitting in traffic. For many people that is hundreds of hours every year which could be productive in some other way.
Of course many places in the US it is just not practical or even possible to live without a car, unlike Europe which is much more compact. In my native Denmark, the country is so small and developed that you can go virtually anywhere with public transportation, comfortably.