Well I think you're making an assumption that the consumer would be educated and motivated enough to buy this product and then be willing to stick a camera in their car and keep it plugged in all the time for little short term value to the user.
Plus, with something like this, there is a difference between the end user and the person purchasing the product. The purchaser might be a parent for their child but the end user is the child. I think there's a small percentage of end users who would actually use the product their loved one bought them.
So I guess overall it feels like it would be tough to gain traction and find product market fit.