NFC acceptance has limitations... usually the contactless transaction in a card present environment is limited to $50 or less, or in some use cases (petroleum) $100 or less. Retailers have to determine, in conjunction with their acquirer, how high to set this limit, but in most cases (depending on the avg basket size) NFC won't replace Chip Card insertion. For data on EMV deployment stats, look no further than Canada to see how well the EMV deployment went for them back in the early 2000's.