Individual decision making is more limited than collaborative decision making because as an individual you would only have one or two points of view on the subject as well as knowledge and ideas. If you were to work with more people to decide on something then there would be a good chance that everyone would be able to pitch in ideas and different points of views to overall decide.
People were not careful and wanted to take the selfie to show people that they did something cool. Mainly just to brag on the internet or feel righteous about themselves. Also by not taking the correct precautions
