I don’t understand the justification for 60 days or for carrier locks at all. If a phone company wants to impose a requirement that a phone will not operate at all if money is owed for its purchase and hasn’t been paid, then maybe I’d be okay with this. But for some reason carriers seem to think it makes sense to prevent, say, using dual SIM mode with their SIM and a second SIM from a different provider for 2 years or 45 days or 60 days or whatever. This makes no sense.
I’m also a bit surprised that Apple plays along with this. Apple surely has the market power to just say “sorry, no more carrier locks”.