The first move of a game always belongs to the player with the white men (3.3); Players then move alternately, each with their own pieces (3.3); Any piece standing on a white square is inactive and can be brought into play only with the opponent's permission (5.3)
Why people argue about this
People often assume that since white men start the game, they automatically get to move first, which leads them to believe it's a given right. However, the official verdict clarifies that while white men do initiate play, players still alternate moves with each having control over their own pieces, regardless of color.