I'm reminded of the following true story.
One year, Midlo Son played in a recreational basketball league because he got cut from his 8th grade school team. At one game, a parent of another boy on our team got in my ear about how much his son loved the game and dreamed of making it big. "He wants to play for Duke!", Dad exclaimed.
Not sure how to respond, I said, "That's setting the bar a bit high, don't you think?" After all, this kid, like mine, had just gotten cut from the middle school team. The dad stared at me all glassy eyed. I began to wonder if he was, shall we say, impaired.
Nice kid, but 4 years later he's never made any school basketball team at any level.
It's OK for kids to dream, but some parents do need a reality check. And while it's great to encourage dreams, the parent must also administer doses of common sense. As in, "Keep your grades up, son!"