In fact, your opponent's preference does not determine that you are good at playing football. For example, an auspicious brother is the kind that his father asks for a left and a right; Many left-footed goalkeepers throw with their right hands; Sometimes I see Fabregas (a right-footed player) signing autographs for fans with his left hand. ...
Back to the questioner, I don't have the idea of "which foot to walk on" in my mind.
As for which foot to go first, I don't think it has anything to do with leaning left and right. I don't know what other friends think.