Comment by outworlder

> I wonder if it's possible to learn that decisiveness.

If the culture allows for it, yes.

On final my instructor was talking about the next approach. I heard the words 'go around' and immediately executed one. He realized that (1) that conversation was unnecessary at that phase of the flight and (2) to not use those words unless he wants me to immediately go around :)

After soloing, I sometimes report that I had to go around because I didn't like how the approach or landing was looking like. I got praised for it every time.

So yes, it's all culture.