> Banks in the UK pay out a maximum of 1% interest on even the best savings accounts (i. e. the return doesn't even keep pace with average person's PoV inflation).
Interest paid on deposits is a free market (generally speaking); if that rate isn't worthwhile to people, they will start leaving and the bank will raise its rates.
> I am skeptical of this explanation for why we should let the banks hold our money.
You aren't 'letting' them and it's not a collective decision. You personally choose to give them your money. Put it elsewhere if you like.
> Or indeed remain alive as anything but a source of borrowing.
They can't lend money without deposits. The deposits are the money they lend.
Interest paid on deposits is a free market (generally speaking); if that rate isn't worthwhile to people, they will start leaving and the bank will raise its rates.
> I am skeptical of this explanation for why we should let the banks hold our money.
You aren't 'letting' them and it's not a collective decision. You personally choose to give them your money. Put it elsewhere if you like.
> Or indeed remain alive as anything but a source of borrowing.
They can't lend money without deposits. The deposits are the money they lend.