Comment by BSDobelix

First of all, that's not a backup, that's a snapshot, and NO, that's not "good enough", tell your grandma that all her digitised pictures are gone because her hard drive exploded, or that one most important jpeg is now unwatchable because of bitrot.

Just because someone is a private user doesn't mean that the data is less important, often it's quite the opposite, for example a family album vs your cloned git repository.