C'mon Chin, don't be silly...It is very apparent when a player is rounding second and she picks up the third base coach and either holds or continues to 3 based on his/her guidance, it is another thing when she is watching the left fielder to see if they are making a play and she gets strung out between 2nd and 3rd because she can't decide what to do. All the while, me the base coach has been watching and evaluating the defensive players to measure their abililty to make a play. Kids don't think two and three steps ahead, coaches have to...
Kids who are taught to rely solely on the base coach to make the decision won't think two and three steps ahead because they don't have to. Again, this is a skill that can be taught in practice. Some kids will get it and some won't, but to assume none of them can get it is silly.
This past spring I watched a former player run through 2 different stop signs in one game and advance safely both times. Her coach's response? "Girl, you have a mind of your own out there, I don't know what I'm going to do with you."