[elliekelly]

The bank doesn’t do that for you. The bank does that because regulators require them to as a condition of being in the banking business.

[jtbayly]

Banks would have ceased to exist centuries ago if they couldn't be trusted to do this in general. Regulations have very little to do with it.

[Shared404]

To be fair, until comparatively recently, bank runs were a real and problematic thing.