Any similar experiences with your son? How did it turn out? Any thoughts are welcome. I'd like to help him navigate this, but in the end its his to navigate...
I think your last sentence says it all. I also have a 2019 and the one thing I've prepared him for is dad is not there in the dugout anymore to help him, he needs to recognize where to make his adjustments and then make them. I'm always around to talk about things after the games. But he has to do the heavy lifting now.
Enjoy it. My 2016 has become a man in HS, which makes me proud and kind of sad at the same time. A good kind of sad I guess.