That is not correct. Work Visas and Tourist Visas are usually handled differently. Many countries require that you have a Visa just to visit. In some cases this is as simple as filling out a form when you land at the airport. In others you need to apply at the country's consulate ofice in your country well before the trip.

I think having a passport is a good idea. It allows spontanous travel and works as an ID, but I don't really see a need to carry it every day.

-Blast