It’s essential to learn how to become independent before you turn 20, so you wouldn’t be stuck in a rut when the time comes. You are officially not a teenager which means you have non-teenager priorities now, including some extremely important responsibilities. You need to do things on your own. In your twenties, you have to explore life and discover the realities that have been kept from you by your parents. It sucks to learn from scratch, but it’s part of the learning process.