Thanks for reminding me about *Duplicate* where, as the name implies, they're duplicates not transfers despite the impressions of the people involved.

Can you say more about consciousness not being as continuous as we pretend?

Even if it's not, deliberately ending what you view as your life so that a copy can pick up where you left off seems like a hard sell. If a new copy of me is waking up every morning and the old copies are never aware, that's different from a setting where people take steps proactively to "upgrade" their bodies or the like. How could that ever really be "transferring" your consciousness into another carrier?