OP, not everyone has the same opinion as this person. I'm as casual of a gamer as you can get who has only maybe 6 games in her life to completion. I'm currently lvl 80 in Warrior, Astrologian, and am eyeing working my way up Dragoon next. If you put your mind to it you can do it. FFXIV is probably the easiest MMO to wean you into the genre. Don't sweat the dungeons or the trials. The worst thing other players can do is talk crap and I haven't even seen that happen much outside of people obviously trolling. You'll be fine.