There is lots of positive feedback and interaction with dropping off and picking up with the trailer. Other kids are engaged immediately (the drop off is right in front of playground), cars are isolated as the pull up and leave and ignored, but the waving and hellos start as soon as I pull up. The teachers ask him about the bike ride over. Did you see a bus? A puppy? Did you like the bike ride? Other parents don't say anything to me unless it is positive, like, oh, my husband rides his bike to work every day, we should get a trailer. Or that looks like so much fun. The ride back home can feel loney, no one saying 'hi' to every person we pass, or getting excited about seeing dogs or buses.