This is why we need jumping/falling system in FFXIV

[Jennestia]

Yeah. Looking at 13, I somehow don't think the Crystal Tools engine was made with collision as its main focus.

CT was mainly designed as a cinematic engine and to implement seamless transitions from cutscene to gameplay.

If you build new areas that allow you to jump around, then it would add immersion, like some action mmorpgs (tera XD), I used to be anti jump because of people retardly jumping around but i doubt we'll get that here

That's severe design clashing. Starter areas = Nothing to explore via jumping. New Areas = requires jumping to fully explore. It has to be pretty universal since take the Ys games for example, almost every area in the PC games at least you need the jump or double jump ability to fully explore, not just one or two areas. The entire game has to make use of a mechanic or it would just be a design clash.

Why doesn't it? I like to have some kind of relationship with the environment. Not just walking and running... Seriously

The current maps are only explorable where we "see". There is nothing beyond it to be explored if we start jumping over mountains.