Plenty of sole trader workmen and taxi drivers and the like have the square terminal that, I just checked, costs €20. €20 to take payments from 100% of your customers rather than the 30-40% market share iPhone has here seems like a no brainer to me.
I think you misunderstand the product. You can take payments from any contactless credential. That means credit cards, Apple Pay, google pay, Samsung pay, and so forth.
> At checkout, the merchant will simply prompt the customer to hold their iPhone or Apple Watch to pay with Apple Pay, their contactless credit or debit card, or other digital wallet near the merchant’s iPhone, and the payment will be securely completed using NFC technology
The language is a bit verbose, but does look like it supports standard NFC based contactless also.