I mean, is courtroom attendance mandatory when given a summons? What are the repercussions for failing to turn up during the appointed date and time? I know that they have Voir Dire and names of American citizens are selected randomly from the electoral roll (the same one used for federal elections on selecting a new president in office) unless you renounced US citizenship which rescinds both your right to vote and potential jury duty.
I get a letter, I get annoyed, I take time off work, I call a number, I get told I am not needed, I enjoy my day off work.
The only time I have ever been in a court room was when I fought a ticket I was issued erroneously.