There is a lot of stuff we humans do, that we just do. We don't really think about it. It hardly helps us function. It often gets in the way. But we do it over and over. We do it mostly because at some time in our long genetic history it helped us adapt to a world that no longer exists.
Eat too much
Get anxious over nothing
Get angry too fast
Repeat old behaviors
Let our hormones be our guide
on and on.
And if we get challenged about why we do it we can then think up a great rationalization.
That's what makes us "human" which is different from "humane."