It's a terribly strange thing to think about. Peggy is used to having to fight for what she wants, but she can't imagine having everything taken away from her like that, only left with the barest of hobbies. "I don't understand, if it's not wartime anymore, why shouldn't he be allowed to fly?" Perhaps it might be dangerous, but so is walking across the street, if done poorly enough.

Then again, perhaps Peggy is simply danger-minded already and has become inured to the notion that something so simple could be dangerous.