I'm pretty sure that this belief system was founded upon the following things:
1) The Clorox 2 commercial that ran in the early '90s that featured such children skipping around in Converse high tops, wearing various blinding colors (which had very very clearly been washed 1 million times without fading), while someone with a Jamaican accent sang a song that went "Jackie's whites are whiter, Bucky's blues are brighter, and Nikki is pretty as a rainbow!"
2) The Cotton Commercials. They still make me weepy.
3) Hanna Andersson pajamas. I have no idea how this line of clothing even entered my consciousness, since I never had any of them (they're just a little pricey), and it's not like there were commercials for them (I obviously watched a lot of TV when I was a kid).
C'mon though. How could you be a bad person when you're wearing these?
What were your totally unfounded beliefs when you were little?