A minor can be court ordered to do so, as could thier parent. If a person subpoenaed or ordered to do something does not do it, then the court could possibly take action to enforce its order. There is no simple answer to this. A witness does have the right to legal counsel, including for help asserting rights under the Minnesota Crime Victims Rights Act, as well as asserting any potential 5th Amendment Right not to testify. I have represented numerous witness, as well as defendants, in these situations.
or call me.