Currently, a cost of "something" is:
1. 100€ if paid with cash
2. 100€ if paid with sovereign-European low-cost GPDR-compliant ISO-certified processor
3. 100€ if paid with American expensive monopoly behemoth Visa/MC.
Currently, it stands to reason to pay with Visa/MC and not bother with carrying cash or switching from Visa/MC to anything else.
In the future, it might be that the cost of the same "something" is:
1. 99.5€ if paid with cash
2. 100€ if paid with sovereign-European low-cost GPDR-compliant ISO-certified processor
3. 102€ if paid with American expensive monopoly behemoth Visa/MC. (Note: Visa/MC explicitly prohibit this.)
If this is predictable and repeatable, everyone needs to change their customer habits. It stands to reason that the change would be to carry cash.
1. 100€ if paid with cash
2. 100€ if paid with sovereign-European low-cost GPDR-compliant ISO-certified processor
3. 100€ if paid with American expensive monopoly behemoth Visa/MC.
Currently, it stands to reason to pay with Visa/MC and not bother with carrying cash or switching from Visa/MC to anything else.
In the future, it might be that the cost of the same "something" is:
1. 99.5€ if paid with cash
2. 100€ if paid with sovereign-European low-cost GPDR-compliant ISO-certified processor
3. 102€ if paid with American expensive monopoly behemoth Visa/MC. (Note: Visa/MC explicitly prohibit this.)
If this is predictable and repeatable, everyone needs to change their customer habits. It stands to reason that the change would be to carry cash.