"Do you think the budget deficit is especially unfair to younger Americans?" -> " a follow up, do you think we'd have such a large deficit if children were allowed to vote?" Such a good use of debate.
I think it's worth debating whether to give teens the right to vote. In my mind at least to 13 and up - but it's capricious / hard to draw the line or come up with 'tests' that aren't flat out repeating our disgusting past treatment of Black Americans.
The West Wing episode [clip below] spells out some of the argument:
I miss the West Wing universe. Would be awesome to see a reboot optimistic show about getting things accomplished, showing a vision for how it's possible to tackle climate change and our other ailments. But move the show past today's progress (it does not treat women well/give them voice, stance on gay marriage etc).