No, there isn't. Children get pulled into all kinds of terrible situations regardless of age. [ how many people fighting with the rebellion now were child soldiers like him once upon a time? how many kids get recruited into spy rings without even knowing? ]

[ cassian himself understands the value of an innocuous child walking through the streets, carrying a token or a message in ignorance. he killed his first stormtrooper as a preteen, but he'd certainly shot at them for years before that. he wanted to stop them, hurt them, fight them. ]

It does not mean it's okay either.