Here in the midwestern states I think people tend to help strangers. Flat tires along the highway, parents looking for lost children, children looking for parents, lost pets, etc, people just jump in and help.
There was a lost dog on the run a year or so ago, many sightings over an area of several square miles. It had been on the run for two weeks when the owner asked a couple of neighbors to help. People saw them walking through neighborhoods calling the dog’s name, and when they found out they were looking for a dog they joined in the search. Over a hundred strangers helped find and safely capture the dog on a very cold, rainy night. I was there, and it was so rewarding when the owner and dog were reunited.