The fee certainly is lower in the EU. https://en.wikipedia.org/wiki/Interchange_fee#European_Union https://en.wikipedia.org/wiki/Interchange_fee#European_Union:

The fee certainly is lower in the EU. https://en.wikipedia.org/wiki/Interchange_fee#European_Union https://en.wikipedia.org/wiki/Interchange_fee#European_Union: “In March 2015, the European Parliament voted to cap interchange fees to 0.3% for credit cards and to 0.2% for debit cards, which was subsequently enacted under Regulation (EU) 2015/751 with effect from 8 June 2015. The caps apply only to personal cards where there is an intermediary, not to cards issued to businesses or to cards issued by American Express.”