If you didn’t vote, nothing would happen, but that is your right as an American citizen to vote and people will look down apon you.
If you did not “sit on a jury” that means you didn’t show up for jury duty, a warrant will be put out for your arrest and you will go to jail.
If you didn’t respect the rights of others, it depends, you could get arrested, or kicked out of a place. Everyone has rights as a human, and people who don’t respect those rights can go to jail, or be not allowed to go to certain places anymore.
If you don’t pay taxes, you go to jail, and you will owe ever MORE money to the government.
If you don’t educate yourself on government there is a very possible chance that you will be screwed in the real world. You won’t know how to pay bills, vote, know your human rights, or if you go to court you won’t even know what’s illegal or not. Government is what runs our country.