Upside of having two characters?

[Kayo]

Having both male and female exclusive gear.

This here is the only reason I have 2 character I play regularly (and am thankful that Lightning event is coming back). Not a big gear grinder so I couldnt care less about coil lockouts. Wouldnt level a whole other toon just to fill spots though I wouldnt mind if I already had one.

Im entry level anyway so the toons are in different servers. Also, later on, I would imagine another reason to make a new character is to just have a low level character to play with. Once you get all your class/jobs to high level you cant be a newbie anymore. Plus some players like revisiting the main story now and then... new race, new starter area maybe ....