IMHO, the EU take is more correct than the oligopoly empowering approach on display in the US.

First, in many EU lands the cost of taking credit cards is already zero or close to it (e.g., France). In large part this is because the governments believe that card payments cut down on tax evasion and also because they want to push technology out into all parts of the economy. The MiniTel was another effort in this direction which was overtaken by newer technology. But, it looks as though the card effort is working.

Use of cards should be a close to zero cost, if not zero to the merchant as a way to enhance overall efficiency. Electronic transfers should be lots cheaper than handling cash because they cost much less to do.

In the US we have a silly system where the banks get to profit from an inefficient card system that allows them to skim off big profits for doing very little.

It is nice that the skim funds all those miles bonuses on cards (nice for FTers anyhow) but, overall, it is a drag on the economy.