Most people are probably right about most things most of the time, because most people get through their day-to-day lives reasonably well.
However, “most things” and “most people” still leaves a lot for all of us to be wrong about — even on a regular basis. Moreover, I have a hunch that the kinds of things we’re wrong about lean towards one-offs rather than day-to-day things, and possibly tend to be the bigger, more directional things that set the tone for everything else. If we’re wrong about certain fundamental concepts, facts, or principles, our day-to-day behaviors that align with them may be “right” in context — but it’s the context itself that is “off.”
Of course, I could be wrong.