How do you behave?

Your answer is fully correct. You should watch out for children and be ready to brake. In German traffic rules, when you see children near the roadside, especially in or near residential areas, you must reduce your speed and be prepared to stop suddenly. Children can behave unpredictably, so caution is necessary. Continuing to drive at the same speed without readiness to stop is unsafe and not allowed. Always prioritize safety, especially with vulnerable road users like children.