I wouldn't make that assumption. Plenty of people are moving around to get the perfect view, and are still not paying attention to how risky the situation is. A

I wouldn't make that assumption. Plenty of people are moving around to get the perfect view, and are still not paying attention to how risky the situation is. Also, as mentioned elsewhere in the comments, vertigo can play a part - and that is _more_ likely to happen when looking at the vista than when maneuvering for a photo.