Gait Problems at this age are usually concerned with damage to brain tissue / loss of muscle strength. the Possibility has to be ruled out first before commenting anything. As far as CS goes. yes certainly it can have devastating effects on walk , but that is only when Spinal Nerves get compressed.
Next Steps
PLease Get a thorough assessment done about the Gait Issue Because the treatment plan will differ for Cognitive issues and will be different for Musculoskeletal Issues.
Health Tips
Get an Assessment Done From Neurologist as early as possible. Stay Healthy