I don't think it'll be as big of a problem later on in life as people say. It all depends on what you're going into. I have VERY visible tattoos (one on each wrist) and I had no problem getting a job, into a sorority, or during interviews for things like Leadership conferences.
Now I can't say how it'll affect you going through recruitment, but foot tattoos are pretty common and I wouldn't worry as long as it's not obscene.
