Travel Quiz, Why A Take Photo of Luggage in Airport?
"A picture is worth a thousand words" in case you need to describe a missing bag?
A) So you can show a picture of it to someone else if it's lost/stolen/whatever.
B) So you can prove that its yours.
C) And, of course, so *you* can remember what it looks like.
A photo of your particular luggage assists because most luggage is very similar in shape, size and color, also the photo crosses language barriers when sharing details about ones' lost luggage.