FiveFrameSwing
Banned
FFS- Very interesting!
Re: mental aspect of hitting: I worked with a HC (U18) who, in an effort to get "more aggressive at the plate", told his players that "the pitcher always wants to throw a strike right away, so everyone swing at the first pitch because it will probably be the best pitch you see". The team followed his instruction and the result: coming up to bat in the 4th inning, 10th batter leading off, their pitcher had thrown less than 15 pitches.
I guess I post this as an example of what NOT to do. giving the other team one-pitch outs doesn't strike me as being aggressive at the plate, it's impatient or immature but its not really aggressive.
From your description, I have worked with similar 18-Gold coaches.
Let me put a twist on the advice.
It is true that many pitchers wish to get ahead with their first pitch. It is also true that the first pitch can be the best pitch. The advice should be to be looking for a good pitch to hit on the very first pitch. Depending on the level of competition and the ability of the pitcher, you might also be looking for a good pitch to hit in a certain area.
Swinging at marginal first pitches, that are not good pitches to hit, (and in a location that wasn't anticipated) can lead to a quick game with time to reflect on the strategy for the next game.