Agreed. And I say that as a GSA. This is honestly the first modernization move I've seen that makes sense to me. That said, the one thing that made me say "hmm" was
@Frontlanegirl's observation about change, managers, etc. There's usually a Leader there to open the building. I guess they'll have to handle those early-bird difficult guests. At my store, certain well-qualified cashiers already know how to get change.
But, AEANTS. There are certainly cashiers I wouldn't want dipping their fingers into the change fund--not because of theft, but because of error potential. Still, I can see why it makes sense overall. May change my tune when it's implemented, but I can see it.