Quote Originally Posted by True-to-Caesar View Post
They prevent alt friendliness/QoL so you can buy boosters and other services.
While I'm sure this is part of the consideration, personally I can't really hold it against them given that you can have every job on one character and both World and DC travel to join groups. When I create alts in other games, it's entirely because that's the only way to level up other classes. It doesn't even become a factor in FFXIV.