You shouldn't dash a child's dreams.
Timmy comes running into the living room and tells his father, Don that he wants to be an astronaut.
Don wants to respond to Timmy's statement.
Don tells Timmy that it's wonderful that he wants to be in space and that he should work really hard at it to achieve that dream.
Don tells Timmy that being an astronaut is nearly impossible and that he should pick a more realistic goal for himself.
Timmy feels both supported and inspired to work harder and really try to make it happen.
Timmy begins to cry and is sad that his father doesn't think highly enough of him to believe he could be an astronaut.