Fishing License Upgrades for Platinum Package

[i8pu**y4bfast]

Hi, 

I skipped the fishing requirement so I do not have the Rookie Fishing Id, and purchased a Platinum Package and it is still currently active. 

My question is, do I still need to do the quest to start upgrading fishing license?

[x1341x]

sage license gives more better stats then the platinum one.
so it's up to you to do the quest or not,
but you could fish and re-buy that platinum only every month (after the "rent" out)

[Alicent]

You don't need to if you don't want to, but you'll have to keep buying each month as a rent fee.