why so much players have a rush mentality

[Darksummoner]

Then we definitely don't play on the same deta center.

Not sure what Data Center you play on, but on mine, no matter the level of the dungeon, everyone has spoken and "Hi". And if we wipe on a boss then we talk it out and explain the fight.

I have only been playing this game for 6 and a half months and it has been the best experience(s) ever. Like I have really really enjoyed my time in Eorzea. These experiences you speak of is something I have not seen in FFXIV. Perhaps you are thinking of WoW. That type of rudeness exists in Copious amounts over there.