BlueRay came out in 2006, there are Teens that have probably never seen a CD or DVD.
Blockbuster died around 2010, apple stopped shipping optical drives in the last of their computers around 2013, Streaming became the norm, there might be teens that haven't used "Discs" for video and have streamed everything.
Got one living with me who falls into this category. She about lost her mind when I showed her a laser disc; thought it was some kind of special record. Yes, that's the world we live in, now: kids collect records and cassettes, but have never seen a blu-ray.
I have a couple that have floated around my house for years. Not really sure where they came from. One of them is The Life of Pi, if anyone is looking for it.