Is it okay to hide a search bar if there are less than 3 searchable items?

The Context

In part of our app, users must select different sessions to register for within their organization. Sometimes that organization has 20 sessions, sometimes it has only 1 or 2.

What are possible drawbacks to hiding the search bar in the latter case?

Our Position

So far, we've decided that no, there is nothing wrong with doing this. Some users become confused by the fact that there is a search bar when there's only one session, thinking they must be missing something.

We see little or no downside to hiding the search bar in these instances unless we are the ones missing something?

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Thank you!

Thank you both for you all for your insight, it's been very helpful.