Brain injuries are obviously very severe injuries that can leave an individual with life-long problems. In the short term, a person can struggle with memory, recognition, concentration and a host of other potential symptoms. In the long term, their physical and mental capacity can be affected. It's impossible to talk about the symptoms of a brain injury without being vague because the variety and severity of the effects of a brain injury are myriad.
However, imagine a young child getting a brain injury. Imagine that injury permanently affecting their life, or at least interrupting their development for a few months. This would be a devastating moment for any family, and even more so if the brain injury was suffered due to another person's negligent or irresponsible act.