When she asserted her authority
While it's known that Kate and her husband have the luxury of a nanny to assist with daily tasks, Kate is adamant about maintaining her role as the primary caregiver. Despite the support available, she ensures her children understand who is in charge.
This determination is evident when they're out and about, as Kate refuses to relinquish control of the stroller. Regardless of her royal status, she continues pushing, emphasizing her commitment to hands-on parenting and leadership within the family dynamic.