I'm sure most have us have enough bad times in our own lives, and the lives of people we care for, to equip us for making songs about that side of life, if we're into making songs at all. (Occasionally I've run into people who seem to have come through without any bad things coming close enough to touch them. They always seem very strange people.)
(Here's a link to a song I just posted, which came out of a couple of small "disasters"...)