A parent who volunteered to be part of ITV Daybreak's investigation into what children would do if approached by a stranger said the results were a "rude awakening".
Natasha said she had not slept for two weeks since the experiment and has been much more vigilant.
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Colo became a mother of three, grandmother of 16, great-grandmother of 12 and great-great-grandmother of three.
The district's director of homeland security has said officials are planning for 800,000 to 900,000 people to attend the ceremony.
The Supreme Court is set to decide on whether disabled travellers are legally entitled to have priority use of wheelchair spaces on buses.