Definition of march from Websters:
march
verb \ ˈmärch , imperatively often ˈhärch in the military \
Definition of march
intransitive verb
1
: to move along steadily usually with a rhythmic stride and in step with others
and via Google:
Leave it to Stupid Gun Control Millennials to come up with stupid stuff like this:
You either march or ride in a bus. It is kind of hard to do both unless you are in the Town of Bedrock.
Maybe this is what they mean? Nah.