Please let me play multiple classes.

[Aureliami]

Everyone is completely missing the real issue here.

If you level up a PLD on 1 character and a WHM on a 2nd character you can play both at the same time, play all the content on both jobs, and get gear on both jobs.

If you level up PLD and WHM on the same character you basically wasted your time because you can only do the content on 1 of the jobs and only get the gear on 1 of the jobs.

This means that it's much better for anyone playing the game to have a different character for each job and if you get multiple jobs on 1 character you screw yourself over.

Being able to have multiple level 50 jobs on one character is supposed to be a unique selling point of the game that makes it better, but the way they set it up it makes the game worse.

[Miiu]

.

No this issue has been talked over multiple times. Right now there is no content after Coil. So why would SE let you burn through the only high tier endgame that exists?
I bet as soon as more stuff will be added to the game the restrictions will be lifted for coil etc.