Yes and no. Here's the children's soda card program.
From
http://www.ncl.com/more/bon_voyage_list.htm#platters
Kid's Crew™ Program - Special Ocassion Gifts
Kid's Crew™ Backpack (12 years of age and under)
* Pricing is subject to change without notice
3-day cruise package
Item #341-3 - $28.00
4-day cruise package
Item #341-4 - $33.00
7-day or more cruise package
Item #341-7 - $39.50
Kid's Crew™ Refillable Soda Fountain Cup (12 years of age and under)
* Pricing is subject to change without notice
3-day cruise
Item # 342-3 - $8.00
4 and 5-day cruises
Item #342-4 - $10.00
7-day cruise
Item #342-7 - $16.00
10-day cruise
Item #342-8 - $22.00
14-day cruise
Item #342-14 - $32.00
Teen Passport Program (13 - 17 years of age)
* Pricing is subject to change without notice
Item #343 - $34.50
20 non-alcoholic drinks, including non-alcoholic smoothie in a 12-14 oz. Glass
The teen and a guest are entitled to an afternoon dance party with the D.J., pizza and unlimited non-alcoholic drinks
The Teen will also receive an invitation to a "Farewell Frat Party" on the last evening of the cruise. Passports are not replaceable if lost.
The basic soda card includes all the items that's available from a batender's wand. Juices aren't included.
But, juices are available at the buffet/cafeteria in the mornings, so I recommend filling up a large jug to drink later in the day. Also water, tea, and milk are available at all the restaurants at every meal.