Most Helpful Girl
If you want it done, get it. You can always take it out if you personally don't like it. Since you work with horses, I'd make sure to pick up a stud to put in it when you're working with them just incase. I work with horse too and with them, you never know when their going to move their heads or bodies. It's so easy to get pushed around by them.
As far as having a babyish face, all my friends that have like snake bites, monroes, or studs/rings all have baby faces and they look good.
It'll suit you as long as you like it, who cares if someone else doesn't think it works on you..it's your face not theirs.