- you can send money to companies and individuals alike. It's easier to trick people into fake shop payments, a card payment provider requires at least a bit it verification/registration
- it's really hard to dispute/call back sepa payments. The card companies often step in there afaik
You can't dispute or call back SEPA INST payments. But you can't dispute cash payments either. This is just fine for most day-to-day transactions, I don't need insurance when I buy groceries or pay the taxi driver.
If the card processing fees could be added to the customer's bill, it would be in the customer's interest to support a cheaper/free alternative. But since card payments are "free" in the eye of the consumer, why should he be using anything but the most convenient option? And what is more convenient than just touching your card/phone to the terminal? As long as this deal stands, EU merchants will be slaves to the card companies.