No, it's not really too late, but unless if you're extremely good and your coach sees it when you try out, then you won't often be allowed to play in the games. That's what happened to me when I played soccer in high school.
Yes, it's still possible to play soccer in college, depending on which one you go to. However, you'd have a better chance of making the team if you play in high school. In order to play college soccer, you have to be better than pretty much any other person trying out for the position.