Photographers are granted a great deal of freedom as to where they can take images. Their use of these images however often remains restricted, especially for commercial use.
Commercial photo restrictions abound, even in Canada. Shutterstock provides an extensive list of restrictions as part of a listing of images it doesn’t accept for commercial sale. They include places and items, Scienceworld, the Chrysler Building, stuffed animals and toys, even cellphones. The list is extensive. So, although you may be entitled to take photos, often times you are still restricted in your use of photos.
Know your rights, and educate those that don’t !