Old enough to have earned this.

[he points a thumb at his headband, the scowling twist of his lips easily readable underneath his facemask. apparently this is a bit of a sore subject.]

Everybody's pitching in right now, so I'm not sure why it matters, anyway. [since a war being on is the most important thing to worry about while trapped in an alternate dimension. sure, kakashi.] Unless you want to tell me your age as well.