It's probably all that Hollywood media that has made them so well known. It makes sense that they're used frequently in shows and movies.
People in a photograph can be hit or miss, especially a crowd, so it's better to just avoid it sometimes. 😄
Yep ... they were built at just the right time, in just the right place, to make the movies!
I generally avoid people in photographs in general except for perspective ... there is nothing like a person to give us perspective on the size of natural things, but I am a European in my thinking about people's clearly recognizable images ... "neighboring rights" ... not specifically existing in U.S. law, but I believe in people's right to their own identifiable image and not to have it anywhere and everywhere without their consent.