Bean stalks, maybe? XD
So, on the subject of transportation, how far are these locations from Mushroom Castle? Obviously, one could walk out the door of the Castle and reach Toad Town (the MK's main town), but where are areas like Dinosaur Land, Sarasa Land, Mario Land, Wario Stadium, etc.. in relation to Mushroom Castle?
Obviously, some of these locales are pretty close that they could walk, but what about others?
.. I guess they could go by pipe, too, if the road to the pipe isn't real dangerous..