Oh, for sure. I level a class because I want to RP it. In fact, if the class is wrong for the character, it's absolutely horrible for me to try to play it.
For example, my novice arcanist/astrologian Dyrstswys (who really is a noncombatant sort of character anyway)- I was leveling Pugilist on her for a while before HW so she could wear the Fistfigher's Jackcoat as a glamour piece, but it wasn't even remotely in the realm of IC for her to be. And trying to play it was absolute torture. After HW came out and they added the craftable, dye-able versions of those tops, leveling her through arcanist so she could access HW content was much easier.
If I play Lancer on anyone but Awyrbyrt, it's about the same story.
Whether or not I play the job of the character depends on the character, however. Shoshopu is a summoner. Dyrstswys is an astrologian. But Awyrbyrt is not ICly a dragoon.
For example, my novice arcanist/astrologian Dyrstswys (who really is a noncombatant sort of character anyway)- I was leveling Pugilist on her for a while before HW so she could wear the Fistfigher's Jackcoat as a glamour piece, but it wasn't even remotely in the realm of IC for her to be. And trying to play it was absolute torture. After HW came out and they added the craftable, dye-able versions of those tops, leveling her through arcanist so she could access HW content was much easier.
If I play Lancer on anyone but Awyrbyrt, it's about the same story.
Whether or not I play the job of the character depends on the character, however. Shoshopu is a summoner. Dyrstswys is an astrologian. But Awyrbyrt is not ICly a dragoon.