In back-to-back 16U plate games I did in an ASA tourney yesterday, including the championship game, I had double plays involving a strike-out/throw-out. What was unusual by both was that the batter struck out on a pitch in the dirt, then took off for first base. Despite my calling, "BATTER'S OUT! BATTER'S OUT!" the runner at first hesitated, then took off for second base, easily getting thrown out.
And I thought these 16U travel teams were well-coached!