When and why did you start playing the cello?

I was about eight and a half years old, playing with my toys in the garden, when my mother asked me, if I would like to play another instrument besides the piano, because my little sister had just begun the violin. I wasn’t too interested, but to get her out of my face, I said “Why not?”, and then she suggested the cello. Same answer. Today she says that she could have named any instrument and I would have agreed!