Gender stereotypes get ingrained early and often
Link (http://www.northjersey.com/betterliving/family/Gender_stereotypes_get_ingrained_early_and_often.html)
5/5/2008
"The 3-year-old no longer will eat his cereal from one of the pink plastic bowls. Like the castle-shaped building blocks, he has determined that they are for "gr-irls."
Only because someone told them that. Once upon a time - pre WWII boys were wrapped in pink, girls in blue because pink was a 'stronger' color.