Kaepernick is an attention whore.
He's 37 and hasn't played football for nine years.
He knows damn well that he's got no chance of making an NFL roster.
Does he remember how to run a clothes washer? Failing that would he be viable to sell Copper-Fit or Low-T supplements?
(note how both involve washed up jocks)
Didn't he go something like 1-11 in his final season with a QB rating under 50 points?
Those are rookie bust numbers.