I again experienced this as REI. I went with my teenage daughter to purchase a rain jacket and there were two kids, maybe 4 and 6ish that were running underneath the racks at the store and running down the walkways. The mother and probably her mother acted like nothing out of the ordinary was going on. They kept shopping and let the kids play, while myself, my daughter and several other customers were clearly annoyed. A staff member/ clerk interjected and asked the mom and grandmother if she could assist them in finding something (probably hoping to speed up their shopping) but they declined and kept browsing.
People: If you take your children with you, please make them behave and be generally respectful. We can't always get babysitters, nor should we necessarily, but how difficult is it to set some boundaries?