Why is everyone color blind in the beginning of their life?

Everyone is not technically color blind at the beginning of their life; rather, infants have limited color vision. Newborns primarily see in shades of gray, as their cone cells, which are responsible for color detection, are not fully developed. As their visual system matures over the first few months, they gradually gain the ability to perceive a wider spectrum of colors, typically starting with red and green hues, followed by blue and yellow. This developmental process is a natural part of their growth and cognitive development.