Why don't quests reset on class change?

[Hostar]

I dont know why they said people are not doing the low level dungeons when I instant que from Sastasha to Hauke manor today and it seem like every dungeon I did today there was some new players in it.

Also, to the OP you can do way more then 6 leves a day and if you level 50 and still have story quest on your second or third class you doing something wrong.

1) That's because you're leveling tank classes. Your char info says Glad/Mara.

2) You earn 6 leves a day, so I don't see how you can do way more unless you don't use them.

3) You get story quests for each class - you might want to check your trainer.