IronWolf
blank
Yes, but now we aren't just talking about having a file. Or having a file and backing it up. We are talking about having a file, backing it up, and remembering to maintain it. Anecdotally, most computer users aren't even bothering to do backups, much less remembering to go back and convert the format of backed up files five years later.
Backups are getting easier and easier these days with services that automatically sync your data to the cloud. Several are free (i.e. Dropbox.com) and allow you to sync to the cloud and keep certain folders in sync across PCs. These type of services do help with issues such as this. Though I agree, if you don't set something automatic up and leave it to manual intervention then things are apt to not get backed up over time, but it is getting easier.