public Child CreateChild(string name, string userName, string password)
 {
     var child = new Child(name, userName, password, Id);
     var childProxy = new ChildProxy(child.Id, name);
     Children.Add(childProxy);
     return child;
 }
        public Child CreateChild(string name, string userName, string password)
        {
            var child      = new Child(name, userName, password, Id);
            var childProxy = new ChildProxy(child.Id, name);

            Children.Add(childProxy);
            return(child);
        }