Welcome to FFXIV! I can only write about my experience and my opinions. Lots of players are already level50, so there will not be lots of low level players. And the players that are leveling another class will already have either friends or partners in the low levels. Sadly, leveling up in this game is so easy, you can level up via solo means with any class. Still though, remember you can always go into fates where many go for exp. Also dungeons, but if you are a DPS class, you will have a long queue time sadly.

Im from Ultros, activated my account from a 3-4months hiatus, and playing to catch up on story and such. Im only casual so I go at my own personal pace. Try to be friendly even if you find surrounded by not so friendly players who will try to get you down via their playing preferenses.

If you want to hop on in Ultros I'll gladly help if I am able to : 3. But like I said, atm trying to catch up on missing story and dungeons hehe. Hope you enjoy the game!