I don't plan to watch the presidential debates tomorrow. What will they prove? Only how well either participant can answer questions in a couple of minutes. This is not how a president governs.
A good president asks the right questions of the right people and then deliberates how to get others to act. There may be a time for quick responses, but for the most part, the president engages in long term thinking. This can take weeks of interviews and of deliberation.
The debates may actually be harmful to the governing of the country. They encourage too much off the top of the head thinking with insufficient information. What one says in the heat of the debate may be quite contrary to what one should do in practice.