In the United States, only about half of those who were eligible to vote actually cast ballots during the last national election.
I admit I have not always voted in the past. When I am tempted not to vote, however, I think back to a story I once heard about a certain Aunt Katherine who died a few years ago. She was blind during the last months of her life, but she had her daughter read the ballot to her and fill it out on her behalf. She was careful to sign the ballot and make sure it was mailed.