Something that is relevant not just for your daughter, but also for other college students, is to keep in mind that there are options for learning certain subjects (like foreign languages) other than as part of their university program.
I've always enjoyed learning new subjects, but one thing I wish I'd realized in late high school and university is that I didn't have risk my GPA to explore a subject that fell outside my comfort zone. For example, if your daughter is interested in improving her Spanish or adding a new "high demand" language to her knowledge set, she could first try taking the course through an unaccredited institution (including, potentially a free or very cheap program). That way, she could find out if she's really interested in the subject and confirm that she's got the aptitude to learn it. Also, it's a bit of a waste of an expensive university education to devote credits to the beginner stage of learning a new language. (More advanced levels of study especially if one becomes interested in the history of the language, comparative languages or literature, are worth it to study at university.)
The same holds true for certain other subjects that might fall outside someone's comfort zone. I really wish I'd taken a basic accounting course and a basic finance course when I was in university, both because the knowledge would be useful and because it would have enhanced my employability. As a history/English Lit student, however, I was concerned that I didn't have the aptitude for these subjects, and was concerned that low grades would pull my GPA down, so I avoided them. (As it turned out, when I wrote level 1 of the CFA 15 years later, I discovered I was quite good at these subjects.) Again, these subjects at the introductory level aren't topics that need to be learned at university (especially at university-level tuition fees). Statistics, computer science and data science are other examples of subjects that are worth exploring first outside the university environment.
So, I encourage parents to encourage their kids to experiment with subjects that might interest them or be useful, but consider carefully whether college or university is the best venue (from a GPA risk and cost perspective) to experiment. The student can try such courses in the summer, or another period when academic demands are low, through an alternative education resource (e.g. a MOOC, a language school or immersion program, LinkedIn Learning etc) and see if they enjoy the course and are a good at it. Then, once they've mastered the basics, they can consider pursuing the course at a university level for credit if appropriate.