I have an idea on this. Banks should just add a question on withdrawing money with something like "Are you paying cash to IRS based on a phone call you received

I have an idea on this. Banks should just add a question on withdrawing money with something like "Are you paying cash to IRS based on a phone call you received from IRS" ? If the user selects Yes, flag it may be ? Another idea is to show a Warning screen on ATM etc before the cash withdrawal screen comes up. The screen should clearly explain the typical IRS scams. This may not prevent all of them but may help.