A bicycle only has one person steering...

Not exactly. Try riding with an inexperienced stoker and you'll
agree!!!

There are several (antique) bikes where *both* handlebars are able to
steer: the "Colson" and "Cleveland" models from the early 1900s, for
example.

I would put the two activities in a very similar category. Not that
they are the same; however, a team that is good at one will probably be
able to do the other with practice.

Jones