I would argue the primary qualification of teaching Italian is knowing Italian, but yes, many other skills are involved. Every job that exists requires a multitude of skills, but there is usually a primary skill. I would disagree that I was being “reflexively dismissive” and given the following commentary and upvotes, would appear a majority agree than disagree. But I appreciate your opinion.

Reflexively dismissive comments often get lots of upvotes, especially when the dismissal expresses a common prejudice. That is a weakness of the upvoting system, not evidence of goodness in a comment.