Doesn't matter if the features have been available for years...
... if nobody ever used them.
Seriously, who ever used NFC payments other than Oyster Card holders, let alone NFC payments via phone? The NFC payment support in Android phones was poorly thought out and didn't work very well from the accounts of the few people who actually tried to use it. I'm sure Apple have learned from those mistakes and done it right. Apple are rarely the first people to do something but they're usually the first to do it in a way that makes people actually want to use it.
If you build it they might come but only if you don't do a shit job of building it in the first place.