Folding bikes, like the Welbike, were born in World War II and its purpose was to be launched with the parachutes to help troops reorganize while on firm land. There are many pilots in this forum that will attest that, also many pilots, travel with a folding bike on their planes so they can use it when they have to land in small airfields and so don't have to walk that much. I even remember having read an article about a homemade folding bike, pretty interesting, that a pilot built himself out of airplane surplus. The front wheel was a single side fork wheel, from an airplane steering wheel.
In Europe, caravaning is pretty popular. People carry bicycles, and if they find one, small motorcycles or mopeds. When they get at their destination, sometimes the caravan must be parked far from the shops. With a small mean of transportation they can get to their shopping without having to go with the whole caravan.
