photography is used in many fields of science, I love photography
thats good, photography helps us to preserve history and memories thats why I like it 
Yes for personal use and business as well, and of course more direct uses like art and film making
I agree with you, photography is to the movie industry what a pen is to paper
and now people have cameras on their phones so it is used daily to record events
technology have changed so many things, I just hope that good old photography(printed photos)won't be lost as a result 100 years from now
I hope not either, with the photography technology it also makes us and police officers safe with body cams