BreadCrumbs does leave a trail of your path.
BUT it is a personal trail, no one else would be able to see it.
Conceivably there could be a way to extend the addon so that it communicates with itself
and shares the path (as a series of coordinates) of a "leader" to other addon users so that a specific person's path
(fx the party or raid leader) is drawn for other party/raid members on their minimap.
While this is feasible for instances that have maps (all of them at this point?)
I'm not aware of any addon that offers that path-sharing functionality.
In any case it would require everyone that wants to take advantage of it to have the addon installed.