Earlier quoted context omitted.
Well, tradition is typically things that have been successful many times in the past! The hard part is to recognize if the reasons for the previous success still apply in the modern world. See "Chesterton's Fence".
The tricky part is distinguishing between things that are successful and things that just haven't obviously failed . Tradition might not always be the best of all possible guides here, as it tends to be a collection of things whose primary commendation is that they didn't immediately cause a society to fail.
Not at all. Traditions become traditions over long periods of time. Thus, they tend to be collections of things that haven't caused a societal failure in the last several hundred years, which is a much better record than not causing immediate failure.