Having thought a bit more about this, I actually think you need to tell your kid to follow their heart. Yes a job is important, but more important is doing what you really want to do (whether that is going to art school with a perhaps lesser chance of employment after, or going into an apprentice position or whatever). The key is choosing what inspires you. You might be broke for the first 10-20 years of your working life, but actually you are building up really important skills.
Get her to read Mastery by Robert Greene, I wish I had at that age. So much solid advice in there!
https://www.amazon.co.uk/Mastery-Robert-Greene-Collection/dp/178125091X
Around the globe, people are facing the same problem - that we are born as individuals but are forced to conform to the rules of society if we want to succeed. To see our uniqueness expressed in our achievements, we must first learn the rules - and then how to change them completely.
Charles Darwin began as an underachieving schoolboy, Leonardo da Vinci as an illegitimate outcast. The secret of their eventual greatness lies in a 'rigorous apprenticeship': by paying close and careful attention, they learnt to master the 'hidden codes' which determine ultimate success or failure. Then, they rewrote the rules as a reflection of their own individuality, blasting previous patterns of achievement open from within.
The key is choosing the right field. This book explains how, and how to develop the right skills. Really amazing book! (No I am not paid to promote it).
He also has some great interviews on Mastery on youtube that would be worth watching.