C#:获取布尔值和字符串返回

我是OOP和C#的新手,我希望这里缺少一些基本知识。.我可能可以在这里使用Tuples语法,但是我试图将其与基本OOP概念一起使用。.我有一个Validator类,如果输入不正确,我想知道为什么会失败。这是我的尝试..如何从Main()获取'Msg'字符串值?警告...前面的错误代码...

class Validator
    {
        public int Age { get; set; }
        public string Location { get; set; }

        public string Msg { get; set; }


        public bool IsAgeValid()
        {
            if (Age < 18)
            {
                Msg = "Not old enough";
                return false;
            }
            else if (Age > 25)
            {
                Msg = "you are very old";
                return false;
            }
            else
            {
                return true;
            }
        }

        public bool IsLocationValid()
        {
            if (Location == "EARTH")
            {
                return true;
            }
            else
            {
                Msg = "sorry..only for humans";
                return false;
            }
        }

        public bool IsValid()
        {
            if (IsAgeValid() && IsLocationValid())
            {
                return true;
            }
            return false;
        }

        public string getErrorMessage()
        {

            return Msg;
        }

    }

    static void Main()
    {
        Validator myValidator = new Validator();
        myValidator.Age = 34;
        myValidator.Location = "EARTH";

        if(myValidator.IsValid())
        {
            Console.WriteLine("good");
        }
        else
        {
        if(myValidator.IsValid)
            Console.WriteLine("bad because " + myValidator.getErrorMessage());
        }
    }