Humans are complex.
Tomatoes are scientifically classified as a fruit. Some people know this and some don't. The tomato is a great example of the vast disagreements humans have with established exact classifications.
Our mental models shape our behavior and how we relate to information.
In the case of the tomato, there are clearly differences between what science classifies as a fruit and what humans consider appropriate for fruit salad.
If you owned an online grocery service, would you dare to only list tomatoes as fruit?
Sure, you could avoid the fruit or vegetable debate entirely by classifying everything as "produce," or you could list tomatoes in "fruit" and "vegetables."
But what if I told you that squash, olives, cucumbers, avocados, eggplant, peppers, and okra are also fruits that are commonly mistaken as vegetables?
What do we even mean when we say "fruit" or "vegetable" in casual conversations? Classification systems can be unhelpful and indistinguishable when you're sorting things for a particular context.