Exactly, and I always explain that to the wife and kids.
Just because a light or an automated device says something is safe, you don’t just assume it is. You always look regardless.
Then there are those potential problems that a person should recognize.
Yesterday I was coming up on a group of teenagers with young children who were walking on the sidewalk. Being teenagers they naturally weren’t paying any attention to the little kids who were playing balance beam on the curb right next to the street. Sure enough I saw one of the little ones stumble about 3 feet out into the lane.
Fortunately I had slowed down and was planning on laying on the horn to chase them back up onto the sidewalk.