Sure, goats are susceptible to mange. Mange is often caused by mites and can lead to various skin problems for the goats. Poor living conditions or weakened immune systems can increase the risk.
Maybe the mountain goats in the story are not ordinary ones. They could be possessed by some evil spirits, which makes them act in a very creepy way, like attacking hikers without any warning.
Through their interactions with different people. Meeting new friends, learning from adults, and experiencing different cultures all contribute to their growth. For example, if they meet a kind old lady who tells them stories of the local history, they gain knowledge and a broader perspective.
I'm not entirely sure who 'Brian Peppers' specifically is in a widely known 'true story' context. There could be many people named Brian Peppers. It might be a name specific to a local event, a family story, or something relatively unknown to the general public without more context.
Yes, it's possible for humans to get mange from goats. Mange is a skin condition that can be transmitted between animals and humans if there's close contact.
The horse and the two goats are symbols. The horse represents the Western idea of value, perhaps something grand and antique. The two goats, on the other hand, represent the simple rural value of the villager. They are his livelihood and his small but important possessions.
You can add the element of a hidden, ancient curse related to the mountain goats. For instance, anyone who disturbs the mountain goats will be haunted by a dark force.