The greatest thing my Ankles received from taking Ballet, Jazz and Gymnastics classes as a kid were flexible ankles.
Many injuries are caused by ankle stiffness which in turn prevents you from lifting and planting your feet properly while walking.
At the end of the day when you kick off your shoes, practice this simple stretch:
1. Point your toes/foot as far downward as you can (as in the picture) .
2. Hold your foot there for approximately 10 seconds.
3. Draw your toes back towards your shin.
4. Hold for another 10 seconds.
Repeat this movement on each foot a minimum of 3 times. Your Ankles should start loosening up and you should gradually gain more flexibility in the ankle. This can also prevent achilles tendon injuries.