I want to learn how to play violin or cello. I am of 17 years old. Which will take less time and?

Personally I would reccomend the cello. It is a beautiful instrument and fairly easy to learn once you get the hang of it. It is not true that you have to have soft fingers- but you might want to keep your nails relatively short as to keep your fingers in the correct position on the fingerboard. Hope this helps.