Is it to late to learn the violin?

Dude, it's never too late. My mom started playing cello at age 44 and she says "If ya ain't dead yet, it ain't too late." so there. If you have some music background that's always good! And quite honestly besides being super young, a young adult is the perfect age. You'll catch onto stuff really quick. Only thing is to make sure you stick with it! Get a teacher for the first several years or so and learn the technique, basics and whatnot, and afterwards you can go on your own path. DO IT MAN! Especially if you love it :D