Hello @Sue396 You have a very welcoming listing and as evidenced by the over 20 reviews, you guests appreciate your hosting. However, we all get guests who provide learning opportunities for us as hosts and, I noticed in your previous posting about guests bringing a dog, it seems you need to be able to set boundaries with some guests who seem to take advantage of your hospitality. Start in your listing by establishing guest access rules that include children must be under the active control of their parents at all times.
Some guests do not understand the concept of boundaries in a shared home listing. It is the host's responsibility to educated them. Since I have never met a parent that took parenting advise 😛 all you can do is be sure to have rules in place and send messages via the Air BNB system if a guest does not respect the house rules.
As to the review, please assist other hosts by addressing what were the positivies of the guest experience and include, "guests might be better served in an entire apartment rather than a shared space requiring parental supervision of their young children." This would alert other hosts who could decide whether they could accommodate this family without being a thumbs down review.