What does this mean for the plasticity of a child’s brain when compared to an adult?

If a child receives an injury to the left frontal lobe of the brain before adolescence, the right frontal lobe which is undamaged takes over the function of the left frontal lobe which is now damaged and lost its functions. On the other hand, if an adult where to receive the same injury in the same area of the brain, the lost of function may be more severe because the brain has lost the plasticity to transfer the functions of that part of the brain to the other.