As a new player to FFXIV I have to say the problem I see is where in FFXI you would start partying with people at around level 15 in FFXIV I have no idea best time to start and no way of searching or finding parties that are specifically helpful to me. In the sense of I don't know what level need to start grouping, where to find groups, what sort of quests and such need groups and what roles each class has in a group.
It just doesn't seem as new player friendly and maybe thats just the player base being far more picky about who group with and what group with or for what to group up to do in first place. I just find it more confusing than in FFXI for all those aspects just mentioned. In the game world I notice quite often noone talks to each other much outside of their own linkshells so and hardly anyone seems willing to group up to do things or doesn't know if or when need to do so. Seems to be a quiet world where everyone doing their own things and noone asking for any assistance or help with anything outside of linkshells if part of one.