> It does make me wonder how credit card companies can possibly keep their lock. I'm guessing they'll try to get everyone else banned?

They offer perks. For example, I use cash-back credit cards for nearly everything, including with Apple Pay. It's like everything I buy is slightly discounted. The travel cards are also really popular. The perks offered by the non-credit payment systems are not as good and usually temporary.

The non-credit based systems are popular in countries where credit card use is less prevalent. Asian countries were largely cash-based until now, so it makes sense that electronic "cash" is the next step.