Gold itself is quite volatile, you would have the same issue even on the gold standard. It was in fact an extremely common problem on the gold standard. A bank

Gold itself is quite volatile, you would have the same issue even on the gold standard. It was in fact an extremely common problem on the gold standard. A bank is expected to be able to float itself as long as a sufficiently low number of customers demand their money at any given time, a bank run will collapse a bank no matter what monetary standard you’re on.