So, I'm playing Xenoblade Chronicles for the first time...

[sc94597]

noname2200 said:

sc94597 said:

All of the main playable characters are 18 or over, with three of them clocking in at: 30 years old, 40 years old, and 88 years old.

Let's not overstate things though: Melia may be ancient by human standards, but she's basically 18 for her own species. And Riki is superficially childish and comic relief. Dunban is the most mature of the cast, although as a whole none of the characters ever really act like teenagers (thankfully) outside Shulk's awkwardness with girls.

Melia: Still her character is influenced by it. For example, her mother is a hom and therefore she likely watched her mother die. 

Riki: He shows plenty of maturity throughout the story.