Let's pretend that what you say is true... what about the portion of kids that ARE being separated from their parents?Not to mention that a portion of these kids aren’t being separated from their parents. Their being separated from their traffickers. But that never gets brought up either.
A DNA test could be administered and concluded in 24-48 hours. There is no reason they couldn't be kept together until there is conclusive proof that the adult isn't the parent.
The overwhelming number of children are with parents, not traffickers.