No not against their will, that's the wrong phrase for that. That would mean it's something they didn't want, when it happened. A baby doesn't "not want a CI", they're not even aware of it. This is why you need parents permission for things, or people that incompetent in some way, incapable of making informed decisions, need someone to make decisions for them. Babies can't make informed decisions, their parents. THEIR parents, not someone else's parents.