If they’re considering optical media, typical BD-R, while viable, may not be be the best choice. BD-R M-Discs would probably be a better choice for backups. Especially if they’re planning on needing access to the data over a period of decades, which would be potentially useful for familiy photos/videos and critical documents.
They are more expensive, as is the drive needed for them, but not by enough to be out of reach or even unreasonable given the additional durability of the discs.
The only people I’ve ever met who share this opinion are people who’ve spent their entire life viewing things that are fast-paced action movies or movies where characters are defined entirely by a handful of quippy one-liners and a melodramatic flash back and then have all of their character development confined to a singular moment of epiphany. Movies where they would be alphabet level predictable if they didn’t move onto the next hackneyed trope at whiplash inducing paces.
If you spend your entire life watching the cinematic equivalent of cocaine of course sobriety is going to be boring.