As an RPer, I could never get into having one character who’s able to do literally everything. There’s no… feeling, or commitment, or specialization that makes it interesting. Worse, all the races in FF14 are pretty much the same except for their appearance. Even their racial histories and cultures are barebones unless you go and finish the hours of content in their specific racial zones.
It’s for the best, anyway. All the FF14 RP is generally just ERP with catgirls that “come equipped with an extra surprise” anyway.