Julie - posted on 02/05/2015 ( 10 moms have responded )
Depending on how mature they are, I say 16. Because at that age you can drive, work, buy your own things, and you usually have more adult responsibilities that younger people don't. Even though you're legally an adult at 18, I don't think 16 is much different mentally or physically. 18 is just an age that was set by the government. You don't just magically turn into an adult at a certain age.