I guess he'll never play for the Green Bay Packers.
But, seriously, colors influence people in many ways and this kid is simply being honest (assuming the story is accurate). At age 7, I saw my first game at Ebbets Field and fell in love with Dodger blue. Later, in 1958, I became a Baltimore Colts fan because their uniforms had similar colors. Although I remained with the Dodgers in their move to LA (and thankfully their uniforms have never changed their basic design and colors), I was not able to follow the Colts to Indianapolis (where?).