I have always been the "family photographer." Every time family mambers would gather, I would take a few snapshots. ...at dinners, outside, or in fun activities, whatever seems appropriate at the time. ...even group mug shots. Then my little sister got cancer. We got together more often. She passed away 27 years ago at age 40 leaving a husband and three daughters, and we have a lot of good family snapshots. Our parents are gone now, and we have lots of happy "memory photos." Since then (and I am age 75 now), the camera is always at family gatherings and ready. My idea is that we never know when that final opportunity will be. So, I try not to miss it. Yes, we have some casket photos. But the happy ones get viewed more often, and evoke memories of pleasanter times. ...and try to mark dates, times, and people of the photos, so that generations to come can identify who is in all those photos.
My mother left a banker's box full of family snapshots with no identification on them. We can only guess who most of the people in them would be.
Just my thoughts...
Jack