~320M people in America, but not all are able to vote (not old enough or legitimate citizens). There are less than 200M registered voters.
Thanks for your reply. There are two major problems with this arrangement. Firstly is taxation without representation. When someone is about 15 years old they start getting taxed if they have a job, but are not allowed representation. Either don't tax minors labor, or give them representation in government, because doing both is a clear violation of a required principle Republics.
Secondly and with even more impact, a debate going around the internet at the moment, because of comments by JD Vance that parents should get more votes, is whether or not children should be represented through their parents. Some people are saying that parents should select a representative for their children by having more votes. I would also agree that parents should select a representative for their children, but via a Cooperative Republic rather than by voting.