[Wowfunhappy]

For better or worse, ZFS isn't really targeted at "average users" as of right now.

See also: There is no stable ZFS implementation for Windows as of right now, and the implementation for macOS (while surprisingly painless in general) requires at least some command line use to set up.

If anyone actually develops a ZFS implementation designed for average users, I would agree that it should include automated backups by default.