You MIGHT be able to climb up the side, but the road was built for the sake of carts, carriages, wagons... cars, trucks, maybe a bicycle tour in the modern era.
Not to mention defense ability! Invaders on foot trying to climb the mountain may fall, are slow moving, and might need to use their hands to climb up. They make excellent targets for archers. Siege weapons most likely need to take the long road around, making them vulnerable to attack for a much longer period before they reach the walls also.
Not to mention defense ability! Invaders on foot trying to climb the mountain may fall, are slow moving, and might need to use their hands to climb up. They make excellent targets for archers. Siege weapons most likely need to take the long road around, making them vulnerable to attack for a much longer period before they reach the walls also.
It ain't all about YOU, silly little hiker!