Our Bill of Rights covers all humankind.
If a separate Bill of Rights just for children were instituted, would they even know what it says?
Bill of Rights Quiz FAILAnother "walking around" video
http://news.yahoo.com/whats-the-capital-of-canada-harvard-video-140610532.html found that Harvard students (except for one Canadian) did not know what the capital of Canada was. If more of them guessed major Canadian cities, such as Toronto or Montreal, rather than provinces, the video would be less disturbing.
Producers of such videos don't say how many people they interviewed before finding the ignorant people. Unless they do, the videos should be considered entertainment rather than data.