People Trump's age (and I can say this, being close myself), do not change their nature, and their way of interfacing with others. What we have all seen of him in this debate, and especially in the primary debates, is WHO HE IS, and it is what he will be in the White House, and traveling the globe.
It is simply stupidity to expect, to hope, that he will be anyone else.
For a year now, many of us who were expecting him to get his act together, have waited long enough. He needs to be shown the door. We can't trust him in the White House. Neither he, nor the republican party, have earned it.