In middle school mine shut down every summer, played other sports. Due to the heat, it became indoor basketball and bowling and early morning golf. Surf camp one summer. he actually won that rip due to a project he completed for middle school. He came home with a classic case of sea lice, but did he have fun.
Going into sophmore year was the first summer he really played in summer (but not that much). He probably practiced more than played for a few tournies. Same for junior summer. Senior summer was the first time he played all summer in his whole life.
I am not sure if this would have happened if he was a position player even though he had opportunities to play position, he just wanted to do other things and we encouraged him to do so.
I am sure that most of our sons could play everyday, and I'd rather see mine playing than sitting around or hanging out getting in trouble. But baseball consumes so much of your life as you move onto college and beyond, I am glad that he had that time off as a young player.