I agree... Can you imagine if we all had saved the only copies of our photos on floppy disks? I still have one floppy and sometimes I think, "maybe there's something important on this" but there is no way I'm going to the lengths it would take to find someone with an old floppy disk drive so I can find out there's nothing of value on it.
What if there's a cyberwar and everything on the Cloud is gone or inaccessible? Even if it is accessible, what are you putting in place to ensure that people you would want to see it even know it's there and then how to access it?
I make yearly calendars for my kids' families and for myself, and I put the best pictures of the previous year on the appropriate months. That's one way I keep hard copies. I also store family history photos and text on Ancestry.com and print and store the same stuff filed away in a "genealogy" folder in my file cabinet.
One thing I've been thinking of doing is trying that Shark Tank product: https://www.groovebook.com. Seems easy and methodological.
Or you could simply just choose the best pictures to put in an old-fashioned scrapbook of some kind, and then throw the "can't decides" into a box for the next generation to figure out. (If you do that, try to at least identify people in the photos on the back.)