Me and that same cousin got together and played it again 3 or 4 years back and got to 99. The grind at max level is just too strong to keep my interest. He, however, got into the ffxi horizon fan server that's pretty much exactly like original XI, but with some QOL additions and an added hardcore mode. He got summoner to level 75 in hardcore mode and died like 2 days later. You don't lose your character, but there are some cool items you get from hitting certain level milestones that you do lose. One of which was a ring with a teleport spell on it that had unlimited charges and only like a 20 minute cool down that you get st 75. It also does a server wide announcement when a hardcore character that high dies, so everyone was messaging him. He got super bummed and quit.