I've been backpacking and llama packing for close to 50 years. I have yet to see a bear on a pack trip although I've seen them while hunting. As a result, I get complacent about it and I might regret it some day. Putting the food near the llamas is an easy preventative, much easier than hanging a bear bag. A few years ago, I took 2 llamas on a scouting trip. It had snowed 1/2" that morning. On the way up, I went through a place where a pack of wolves had spent the morning. The snow was completely beaten out by their tracks. I went on another 1/2 mile before making camp and I kept the llamas in close that night. I don't know how a wolf would react to a llama and I didn't really want to find out.
As you say, city people would be completely freaked out by the wolves. They consider them to be cuddly pets until you have to sleep out in their backyard.
