I work at a home improvement store & I am obligated to warn customers about unsafe behavior & that the store ("we") doesn't want to see anyone get hurt, especially children. what they do after they get this warning is out of my or the store's control but we've done what we can to avoid tragedy
those same requirements don't exist out in the wild, so I'm less likely to offer direction to strangers. I will however, warn riders coming from the opposite directions about hazards they are about to encounter (which I had just passed). for example, warning a fast paceline that I just passed a woman knocked down to the ground by a fast cyclist, DUH! that's an exaggeration, I would never be able to get all that out in the split second it takes a fast paceline to pass me. it might actually be more like: "watch out ahead!"