Dunno if English side Producer Letter said same thing but JP one stated you can get on My Chocobo from the NPC within your own GC city; here's update on that one.

Quote Originally Posted by Triairy View Post
皆さん、こんばんは。
Good evening everyone,

Quote Originally Posted by yami View Post
結局所属国のみかー
So it's only own country huh (own GC country)
プロデューサーレターでは、「自GC都市内の厩務員からマイチョコボに乗って街の外へ移動可能に」と記載していましたが、その後も調整を進めており、現在の ところ所属GCに関係なくどの都市であっても、都市内の厩務員からマイチョコボに乗って街の外へ移動することが可能になる予定です。
大変失礼いたしました。
In the producer letter we stated "You can get on My Chocobo from your own GC city's NPC" but after we made further adjustments and currently we're planning so it's possible get on My Chocobo from NPC in other cities as well. We're sorry about that (that it was stated that way in P.Letter)