Need help clarifying about starting classes

[Anova]

Also, be aware that you only get airship transport starting after a lvl 15 story quest. If the next class you're interested in is in another city, you might have to spend some time walking to whatever city that has your class or buying the lvl1 weapon from the auction houses (which will be much more expensive than they're actually worth).

I don't expect it to be a major problem, but it's something to consider if you're prioritizing a role.

[MarquisRegalia]

Just rent a chocobo at level 10 map out your path before you head out if you plan on trekking (I started in Uldah and marched to Gridania at level 10) took me 10-15mins on Chocoback + walking. When you reach the city's first area go to chocokeep and ride it to the main town But I advise against this, it becomes annoying for a little while having to start in a different town than your main class