I take my dog to a dog park frequently because I live in an apartment and she has a lot of energy. The park rule is no children under 9. When I see small children, especially toddlers, in the park, I get kinda grossed out. They pick up dog toys.. some will play in the sand- gross! I just keep hoping they won't put their fingers in their mouths. I haven't ever been in the situation where a parent was getting upset because the dogs were getting too close to their child though. One of the biggest concerns that I didn't see mentioned in previous posts is when a small child decides to run in a dog park. Some dogs have a chase instinct, and when she see a child running, they want to go catch it. Depending on the size of the dog, that can be terrifying for a kid! There is a great dane that comes to our dog park, and he plays great with other dogs, but if he see's a child running, he will chase! One time a little girl came in with her family and the owner of the great dane warned her not to run, but like 30 seconds later, she starting running. The great dane ran after her and put his big paws on her shoulders, but didn't knock her down. But she freaked out and started crying. Luckily her mom didn't get mad at the owner of the great dane.