Father whose son has broken his arm on the monkey bars: "That's a character-building experience, boy. Carry on like this, and in a few short years you'll be fit to join the cavalry."
Father whose daughter has done same: "Why do these monstrous monkey bars still exist in our civilized country?"
Well, maybe they should be marked "Boys Only."
On the other hand, by kindergarten I had my boy on horseback -- and that can break your neck. I haven't had a daughter, and maybe I'd feel differently about it, but I suspect I'd have had her on horseback by that age also. I could be wrong, but girls like horses. I doubt I'd have had the heart to keep her from them. Nor did Rhett Butler, I suppose, who lost a daughter just so.