The
genetics of human eye color are actually super complex, with multiple recessive genes impacting phenotype. In junior high and high school biology classes, eye color is often used to demonstrate the principles of dominant versus recessive alleles, but in real life, your eye color is influenced by multiple inherited polymorphisms, and ultimately, it is much too complicated to be predicted by a simple Punnett square. The idea of brown eyes being dominant over blue was once widely accepted science, but as our understanding of the human genome has expanded, geneticists have realized that this explanation is too simplistic.
So, basically, a couple of generations of teenagers were needlessly made to believe that a blue eyed child of brown eyed parents had to be a product of clandestine adoption, but that was actually wrong and your parents are probably your parents.