Daughter wants to go to private high school

My daughter, Caitlin, now entering 8th grade, wants to go to a private high school in So. Calif. Both her uncle and her cousin attended, which gave her the idea to begin with. I'm excited for her, but at the same time I have a glitch about it—I will miss seeing all the things she will do as a high schooler. I'll miss seeing her play soccer on the high school team, or run track, or just watching her grow up as a teen. I really have mixed feelings over it.