Does my dependent need to pay tax liability?

My daughter is a 22 year old college student and a dependent. Her W2 shows roughly $4,300 in wages, etc. Using your software we calculated that she has a modest federal tax liability. (We haven't looked at the state yet.)

 

As a dependent, does she really need to pay this liability or do we have the option to just not file? Same question regarding state (Oregon).

 

Thank you.