Having a big toe makes balance easier but its not essential thats all to do with a combination of the levelling mechansim within the inner ear i forget what its called,and what you can see......while the big toe is obviously very important in standing and walking you can learn to stand and walk without them.
My point was is losing a toe/s going to enable the foot to work better ?.......if not how is that evolution.
The experts reckon that the little toe,is a useless appendage and as such we are slowly loosing it ... Is that not evolution ??? ........