Should voting be mandatory in the United States?

I'm Australian and I've voted in every election since I turned 18, so let me correct what Americans always get wrong: the fine is tiny and almost nobody pays it. Its 20 Australian dollars, roughly 13 US dollars, and first you get a letter asking why you didn't vote. Say you were sick or traveling and you're done. The Australian Electoral Commission isn't hunting people down. The real mechanism is social expectation. Everyone votes, so everyone talks about it, so you vote. That's the whole trick. Stop imagining Americans dragged to polls by police. Imagine a 13-dollar nudge and a culture that treats election day like a normal errand.