Short people shouldn't ride? Pfft, look at the MotoGP riders.
As said above, more sole in a boot can help. Also you'll want to move the bike around while off of it, it's easy to do if you keep it balanced rather than having it lean on you. Trying to move the bike around on your tippy toes is only asking for trouble, and otherwise, you only need 1 foot on the ground.
Good luck!