I believe in their own "well meaning" way they call themselves trying to keep their children from getting heartbroken. Therefore they attempt to get their children to be more "realistic".
However I would imagine today's kids believe they have more possibilities. Most parents tend to live forever in their own past.
There was no President Obama, Oprah, Robert Johnson (founder of BET), Ursula Burns Chairman and CEO of Xerox Corporation, Kenneth Chenault CEO of AMEX, Donald Thompson CEO of McDonalds, Cathy Hughes owner of Radio One (53 radio stations), James D. White CEO of Jamba Juice, Janice Bryant Howroyd founder of ACT•1 Temporary Agency, Collin Powell and Condoleezza Rice (both) former Secretary of State, Magic Johnson owner of the LA Dodgers baseball team, Michael Jordan owner of the Charlotte Hornets basketball team, Tyler Perry owner of his (own) movie studio, Kenneth C. Frazier CEO of Merck & Co., Inc. (pharmaceutical) company, Clarence Otis, Jr CEO & Chairman of the Board for Darden Restaurants (Red Lobster, Olive Garden, Long Horn Steakhouse, Bahama Breeze, Seasons 52...etc)
The list goes on and on not including any Hip/Hop rap moguls like Jay-Z and P. Diddy who are said to be worth $500M each.
There are just too many examples of black people succeeding for any parent to be poisoning their children's mind regarding what is "possible". It's time to stop playing the race card as an excuse and stop being a "dream killer". It's almost 2015 and not 1915!