Are you getting a discount when you buy a carrier phone on contract? Every time I've priced them out, the total for 24 months of payments is typically around the full MSRP of the phone. Buying direct usually results in hefty discounts since companies like Samsung always have some sort of deal going on. My parents recently got some bottom of the barrel smartphones and still wound up paying hundreds of dollars for them on contract even though you can buy them outright online for 1/3 of the price.

Nobody would put up with buying a car that only runs off gas from ExxonMobil, even with a discount. Nobody would buy a laptop that can only get an internet connection through Comcast. That so many people put up with locked phones are OK with this practice shows a lack of comparative analysis.

As for zero days: I doubt carriers can move that quickly without making mistakes. Two months may be a bit long,

I think you misunderstood. This is about "after how many days on the provider's plan" a customer is allowed to switch providers.

In Spain, most carriers sell fully unlocked phones, even when you sign up for a multi-year plan. You can use the phone with any carrier you wish from the start, even though you still have to pay for the original plan, and cancelling it incurs a penalty equal to the prorated amount of the initial discount on the phone price (then they claim inflated "base prices" that are above what one can find at non-carrier shops, but that's a separate issue).

The proposal is at an early stage

Carriers will likely have until well into Trump's administration to make any cha... oh, right. Well, anyway, it could be a thing, "if".