Here is Washington DC area those who live in the city commute in their work clothes on whichever bikes their like and those commute from outside of the city (long distance) generally ride in cycling clothing specifics. I've been to the Netherlands, know people who live there and believe me, the Dutch do own road bikes and lycra but they only use that for long ride on the weekend. Those who commute there, they don't ride that far. If they work far away from home, they just ride to the train station, which is something isn't readily available in most places in the States.