You’re asking for medical advice from non-doctors on the internet about pediatric development.
Don’t do that.
Please contact your daughter’s doctor and/or a local pediatric surgeon and/or a surgeon who specializes in pediatric reconstruction of the hand to determine accurate advice. I personally don’t think a ten year old can ethically request an implant, even with your permission, due to not having the mental capacity of experience to consider long term effects and weigh risks properly. But I am not a doctor, and I’m not giving medical advice.
Big difference here is that a Cochlear implant is used in cases where a hearing aid is not effective enough. In the case of laser eye correction it is the opposite. Laser eye surgery is only able to correct vision problems for a select set of circumstances and works by ablating away the cornea. And most people can get glasses which will correct for most vision problems.
There probably is a slightly higher risk for migrations in growing bodies, think I’ve read that here before. Generally these implants are extremely simple, medically.
My personal opinion, if you find a pro that does it, yeah go ahead. My “this is the internet” answer is, reconsider it. Would a NFC ring work?
To this, I call fallacy. Never, NEVER, take an open internet forum’s word for granted regarding medical or legal advice without further verification and study. If all it would take for you to be reassured about the lasting implications of driving a syringe into your daughter’s still-maturing hand, one of only two primary means she has to interact with and manipulate objects in the world as she lives her life, and injecting a foreign body with the potential to migrate and interfere with growing tendons and bones is a few accounts here saying “Yeah, go for it”, then I worry for you.
The only source you should be seriously consulting for medical advice of a child is a professional, licensed and accredited pediatric surgeon.