How old is N in Pokémon?

How old is N in Pokémon?
Natural Harmonia Gropius エヌ N

Age:

16 or more 18 or more (B2W2)

Family:
Ghetsis (adoptive father)

Class:
Pokémon Trainer (Battles 1-2, B2W2) Team Plasma King (Battles 3-5)

Friends:
Player

Natural Harmonia Gropius エヌ N
Age: 16 or more 18 or more (B2W2)
Family: Ghetsis (adoptive father)
Class: Pokémon Trainer (Battles 1-2, B2W2) Team Plasma King (Battles 3-5)
Friends: Player
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