I tried learning the piano when I was about 10/12. My mother was a gifted player so I guess I wanted to be the same and probably didn't really appreciate the hard work involved. However, I was willing to have a go but the teacher was sooooo.. boring! Those were the days when you just learnt scales and chords and traditional little ditties at the first stage - nothing modern for the times. So I gave up as I didn't want to waste my parents' money either.
I would like to be able to play as that ability opens up other fields and social avenues; however, my daughter took up some instruments at school and my granddaughter now plays the guitar well, so I get vicarious enjoyment! Not sure that I would have been as good as my mother as she had a great 'feel' for the music and superb expression through the piano so I have no desire to start again. I took up my father's hobbies of writing and photography and am content with that.