That's not precisely what the Yellow Backie program is, but that's my takeaway from this interesting development from Amsterdam.
With half a million cyclists, Amsterdam is the bicycling capital of Europe. If you've lived in Amsterdam for a while, that's great. But if you're a visitor, then navigating the city by bike can be confusing. So Yellow Bike, a bike rental company, invites people to stop by one of its locations and get a free yellow luggage rack. When you ride around town with one of these, you're inviting people to hitch a ride by sitting on the rack.
Yellow Bike says "It's a bit like couchsurfing--on a bike!" Right now, rides are free. But as some economists have pointed out, the boon of Uber is that it lets people turn their consumer goods into capital goods--their personal possessions into ways of earning money. Perhaps these yellow luggage racks are the beginning of a way for bicyclists to do precisely that.
-via The Presurfer
www.ibtimes.co.uk/1512666
https://en.wikipedia.org/wiki/Cycle_rickshaw
or a
https://en.wikipedia.org/wiki/Boda-boda
However i am sure there are some legal restrictions in some countries, for example in germany the "yellow backie" style transport is forbidden...