Advice?
If she likes languages and they come easy to her, she should take as many as appeal to her, in addition to Latin. If languages don’t come as easy, take Latin for the excellent preparation for SAT/ACT tests that will be coming up sooner than she thinks.
That’s my 2 cents.
I’d add to this that in addition to the standardized test prep, students who take Latin often feel much more accomplishment in a shorter span of time. This is for two reasons. One, the focus on reading instead of speaking allows the course to cover much more material in a shorter period of time. Two, and this is not PC, but I think it’s true.. In today’s high schools, languages like French and Spanish are picked by so many students that the courses MUST be slowed down so as to not harm the slower students. Smart students are the ones taking Latin, so the teacher doesn’t feel like she has to slow down to help out the weak students. College courses in language usually progress much faster. For spanish, one year of high school instruction is equivalent to one semester of college. The difference, while still present, isn’t usually as significant in Latin, Hebrew, or Ancient Greek.