If they really want to fully experience the lifestyle and embrace the culture, then they should try backpacking through Rome! Meeting the locals, trying out their cuisine, cooking with them, sharing local stories and histories - you can NEVER get as much personal interaction with the locals if you spend half your time waiting through airports, train stations, and even traffic jams. Why not try it? It might be a grand experience that may surprise you, and you might even discover a lot of things that you will never notice when traveling by vehicle.