Question: do the colors really matter? A 1970s ad from Lego played up how kids don't see a problem making their beautiful truck out of whatever pieces were av

Question: do the colors really matter? A 1970s ad from Lego played up how kids don't see a problem making their beautiful truck out of whatever pieces were available. I would have been a color snob, but all I had in 1979 were red bricks.