When I was in band we learned to play the violin or some people know it as a fiddle. I can say I was horrible lol.
Did you enjoy the fiddle? Was it hard to play?
It was interesting to learn something you know to get out of my comfort zone but it was hard it consist of small and high pitches you need to know to make it sound good.
Did you take lessons outside of school?
No only in school but I did attend many plays and shoes that played the violin and I enjoyed listening like once I heard it at a Western state fair concert. 
At what age did you start training? I imagine it's a difficult instrument to master.
I only played for one year in band class when I was 15 it was important for my instructor that we all knew how to play because of the variety violins was used in.