What I'll say is that certainly Mr. Khadr is not the stereotypical child soldier, like those from Sierra Leone, for example. The point, number one, is that the Optional Protocol in international law draws a line based on age, on the general theory that children, whatever the source of the coercion, whatever the source of the influence, are less capable of making voluntary choices than are adults.
On April 29th, 2008. See this statement in context.