They don't know that, quite frankly assuming that they know about it makes me want to laugh at you.
A lvl 60 cannot solo G3, and here is why:
Crimson Orb Quest: Unless they've lvl'd a mage job, you're sending them on a trip to pain ville.
Rank5 Magicite Quest for access into Beadeaux: You expect a lvl 60 to have gotten that far into the game in terms of rank missions by this point?
The climb to Oztroja: Yeah we all know the tricks of this castle and the trapdoors, the killer bird men, the secret lever codes, then the 3 word password to get to the crest.
Seriously just quit the game already yourself, elitests have no place in FFXI at this point.