Agreed! But a big majority of phones out there, especially in secondary markets to the US like Latin America are locked by default from within the Telcos, and will go though several hands before ending on a shelf or refurbished and sent to the middle east.

Each country has different policies when it comes to unlocking. Locked phones greatly outnumber unlocked ones.

Take Chile, where phones must be legally unlocked by the telco or manufacturer to work WITHIN other operators in the country, but not necessarily abroad.

Buy an "unlocked" phone from a Chilean and you might get stuck with a brick.

The different and complex type of unlocking levels Apple has for its devices (and there are many) are designed to assist the Telco and any countrywide regulatory policies that need to be enforced.

There are many parts to this jigsaw puzzle.