What proof do you have that human reasoning involves "symbolic logic and abstractions"? In daily life, that is, not in a math exam. We know that people are actually quite bad at reasoning [1][2]. And it definitely doesn't seem right to define "reasoning" as only the sort that involves formal logic.

[1] https://en.wikipedia.org/wiki/List_of_fallacies

[2] https://en.wikipedia.org/wiki/List_of_cognitive_biases