Trading is essentially an activity of showing numbers on a screen between funds deposits and funds withdrawal. Traders are playing with numbers. No one actuall

Trading is essentially an activity of showing numbers on a screen between funds deposits and funds withdrawal. Traders are playing with numbers. No one actually expects the paper shares to be mailed after stock purchase. Brokerage guarantees successful withdrawal event - and if not - then it's a present and clear fraud. So if brokerage does not actually do anything, but properly updates the numbers on the screen according to security prices and commission schedules + guarantees proper handling of deposit/withdrawals - no one essentially cares?