When evaluating it’s good idea to pull ideas from what you learn to back up your decisions
Answer:
First you will need to get an idea of what you want to do then that's when the are is needed once you have got the idea it will be time to manifest is into animation.
And yes non artists can still work in animation cause they can bring the whole idea to life
Yes it does there are a lot of other things behind it
The realist movement started (in france during the 1800's) because artists wanted to break away from the usual and formal art styles and subjects that people originally used. so they created objective and unemotional works that were full of detail and imaginative flourishes.
hope this helped!