Well, since you insist on proving that you don't know what you're talking about...
The daughter must sign forms to take the ASVAB and physical should it go that far. Those are/were DD Form 714s.
The enlistment APPLICATION is non binding. It is only an application. DD Form 1966 series.
Part of the application packet will also be a medical prescreening form (from 398?) and a background check form.
With your advice, the daughter cannot even take the ASVAB which means that she cannot even discuss options like bonuses, college funds, and without aptitude scores she can't even look at some career fields.
Your advice stops everything and doesn't allow anything at all to continue.
Is it your goal to stop her from continuing the process because that's what your advice will do?
CORRECT! My advise also included - "This decision can take months."
Why is DON'T SIGN ANYTHING so hard to understand?