Nowadays, I suppose most consumers do have RFID tags (debit cards, transport cards, building keys, e-Passports), they just might not be aware of the underlying technology.
Where they make more sense is when they actually include dynamic information: Some of the newer tags can e.g. include an authentication tag in the URL part, which lets you verify the tag's authenticity (together with a web service that keeps track with the high watermark of opened sequence numbers).
I wouldn't call that "RFID" anymore, though; to me, RFID means transmitting only an identifier, with all the logic happening on the backend, but ISO 14443 tags get most interesting/useful when they go beyond that and do things like authentication or local processing.
This vendor has an array of RFID products: https://gototags.com
If you buy any standard NFC forum tag, chances are pretty good that it'll work with any Android or iOS device. The Ntag series has worked pretty well for me on both OSes and across various phones; I have one that instantly and cross-platform rickrolls everybody tapping it.