I wouldn't have guessed you as an arbitrary line kind of guy Mike. If it really is just because of that line to you, perhaps a solution would be to stop declaring a moment of adulthood altogether. Just assign each right, privilege, and responsibility on it's own individual basis. I mean we actually already do that. We have different ages for when you can start working part time, when you can start working full time, when you can drive supervised, when you can drive unsupervised, when you must pay taxes, when you can be sentenced to prison, when you can vote, when you can drink, when you can rent a car, when you can run for president, when you can get a senior discount, when you can collect benefits. Let's scrap this silly idea that you suddenly morph into an adult at midnight on your eighteenth birthday, and keep using common sense like we mostly already do, just without the official title.