Sorry but the entire premise of FF14 is that you can do everything on every character unlike most other games. It's similar to the job system in FF11 and in earlier FF games like FF3 and FF5. Alts are considered unnecessary, and most of the populace thinks this same way. They're not going to change the entire structure because of a few that wish it was something else. I personally have 1 alt that I hardly play as it is as I have too much to do on my main character. And even then, I only have them to go through the story again.