[unethical_ban]

If the national government literally stops creating a certain precision of money, i expect the "exact change" requirement should be invalid.

[thatguy0900]

You volunteering your business to be the the test legal case for that? Or are you stocking pennies?

[bdangubic]

“change will be provided via Venmo” sign at the entrance :)

[anticensor]

Payers are allowed to complete transaction using a single method, you can't violate that right.