That we can posit what he thinks based on the very limited minutes he provides Jakob in garbage time.
there is no strategic benefit to his use, hence we can theorise that he doesn't think he is ready for first grade.
Despite your childish attempts to diminish and deride my point, we can all only theorise based on the information available.
It is my submission that BA's use of his on betrays his belief that his son isn't ready for first grade.
I accept you disagree, but at least put forward some evidence or information that supports an opposing view, rather than just mock and deride.