Standing single file holding your child's hand and explaining why you’re both doing that, pointing out the space you're leaving for other people to pass if they want or need to, is how you teach your child to be aware and considerate of other people. It’s part of parenting. It’s how you don’t raise kids who think they’re the center of the universe. It doesn’t matter if there are signs or not. It’s just common courtesy. Like you don’t stop and open a big map in the middle of a busy, crowded sidewalk. You step out of the way first. You don’t need signs for that either. Being aware of other people and being considerate. Teachable moments.