One question three ways:
At its bluntest: when is the worst time in one’s life to be adopted?
Asked more reflectively: what age at time of adoption creates the greatest risk for negative consequences in an orphan’s life (e.g., at birth, or up to age 2 or so when language is acquired, or from post-language to puberty/adolescence, or after then, &c). This, bearing in mind (1) that each person’s experience differs from others’ in concrete ways, (2) that nothing clearly marks or flags any given age of life in the first place, and (3) that the very arbitrariness of age as a window on the topic may already make it suspect.
Or, one more time: what factors, at any given age of an orphan’s life, exacerbate the negative consequences of human trafficking (e.g., what especially influences those adopted at birth, those adopted up to the linguistic era of their lives, those from post-language to puberty/adolescence, &c).
I ask, because characterizing these differences would seem to lower the risk of talking past one another when trying to contextualize individual experiences within the social field of human trafficking itself. As someone adopted at birth, for instance, my issues differ but may also become clearer in the light of the experience of someone adopted post-language/prepubescent, &c.