This series shows us the future. What artificial intelligence and neural networks will do to us. Now you are laughing reading this comment, but in the future our descendants will not be laughing.
I understood the moral of the series, like take care of your family and be content with what you have and blah blah blah, but still, underage children shouldn't work 24/7. They made it look like his dream was to escape and drive around. That's how he wanted to study, to live his own dream, not someone else's, and it's wonderful. He should study, socialize, look for himself, and not work so hard that he can't even go for a walk sometimes.
As it is, I agree with the top comment. I'll even say more - this is the best episode of the sixth season.