Now that we all basically walk around with digital cameras all the time (courtesy of our phones), we may be in the habit of snapping pictures without thinking about it. That’s not a bad thing—it’s really handy to have that tool to capture unexpected moments, or a receipt that you need, but will probably end up losing.
source https://lifehacker.com/take-free-photography-classes-from-nikon-through-the-en-1845768416