As someone with no musical background, should I learn piano or violin?

I’m in my early twenties and I’ve decided to take on a few hobbies because my life is becoming increasingly dull. I want to learn an instrument (as well as a foreign language and the improvement of my health) but I’m not sure which one I should start with.

I love the sound of the violin but I fear my fingers are too big (long!) for such an intricate instrument so I’m thinking I should learn the piano, which I do enjoy and it’s probably more versatile for writing my own music. But it just doesn’t grab me the way strings do, it’s no doubt a bigger investment too!

I was just wondering if other people would share their opinions and knowledge so that I can make the best decision.

Thanks.