Do you plan to keep your family photographs forever? If so, where will you store them?
As printed photos: a bad idea as photos printed with most of today’s technology solutions, including those printed at the local drug store, will fade within a very few years. The problem is best seen on color photographs where the reds will fade first, only to be followed by the other colors over time. Even black-and-white photos made by today’s techniques will fade. (Photographs printed years ago by chemical means in a photographer’s darkroom lasted much longer than today’s photographs printed at home on an inkjet printer or in a commercial film development lab using a more-or-less instant printing process.
On floppy disks: a bad idea as floppy disks have almost disappeared. Within a few years, floppy disk drives probably will only be found in museums where they may or may not still function.