HDD's can be taken offline. But beyond that - if you're using HDDs as backup, you'll probably be using an HDD drawer, e.g. something like one of these: https:/

HDD's can be taken offline. But beyond that - if you're using HDDs as backup, you'll probably be using an HDD drawer, e.g. something like one of these: https://www.newegg.com/global/p/pl?d=hot+swap+hard+drive+bay https://www.newegg.com/global/p/pl?d=hot+swap+hard+drive+bay ... and the actual disks will usually be stored offline. So, no accidental erasure. But I agree that tapes are probably less sensitive to transportation.