Hi A.,
We are living in Germany too. You are in a tough spot. You need the Mom's but, you don't want your child to learn bad behavior. My kids, 7 yrs and 5 yrs, have had difficulty playing with some of the children (German and American) who attend German kindergarten. They play much more aggressively and the parents intervene very little if at all. At first my kids just cried when they were bullied. They had never experienced kids that were like they said, "so mean." What we have found that works is to model the interaction for our children. We talk to the other kids, with the inappropriate behavior, for them. We definitely step in, we say "NO! We do not hit, kick, bite or throw sand. That kind of behavior will not be tolerated." We pick up our kid and move them to a different place on the playground. You are also sending a message to their parents. We step in for them and say things like, "Now it is my daughters turn. That is my daughter's toy. You must give it back to her. You may ask for permisssion to borrow it. We do not take things from other people without asking." If you do not teach her how to handle these situations as you would like her to, she will just model the bad behavior of the other children. You could say to the child with the bad behavior, "If you do not play nicely with my daughter she will not come to play with you anymore." Maybe for a while, you will have to play too, to model appropriate play for all the children. It's a sacrifice on your part (you don't get to talk to the other Mom's) but, at least your avoiding an emergency room visit to get the sand out of your daughters eyes. This happened to us last summer. You will be giving a clear message to the other Moms about what you expect without having to discipline their children. If nothing else works, you could try having a separate play date with only the Mom or Mom's who's kids play appropriately. You could also have coffee or a night out with the Mom's and not their kids. After some time, my daughter is now handling situations quite well. My son still just cries. I hope as he matures, he will learn to handle these situations as well. Good Luck.
K.