I have to disagree on some of the comments....I think the first thing a catcher needs to do is to make sure the pitchers have confidence in the catcher's ability, especially blocking balls in the dirt -change-ups, curves, etc for a third strike.
In high school, especially at the JV level, most kids steal on the pitcher. Yes it's nice to have a catcher with the defensive ability to "prevent" runners from advancing, but it isn't always the catcher's ability or inability that let's kids run free. My son (who is a D1 committ and is a catcher) has a pop time that is consistently well below 1.9 seconds and is very acurate with his throws to second. Yet, there are a few pitchers on his high school team that cannot hold runners close and that makes it nearly impossible to make the play at second close.
There is more to catching than pop-time. D1 scouts won't even look at a kid whose poptime is above 1.9. BUT...Throwing 1.8 into center field does nobody any good. If they cannot block a ball in the dirt or cannot move right or left in croutch, the scouts will go elsewhere, even with a 1.8 arm. Also, scouts analyze foot work, ball transfer, how they manage a pitcher/game, etc. They also love a catcher that frames a pitch well, and that means more than just catching it and holding the glove....Too many parents think if their son is below 1.9, they'll go D1. This's only the tip of the iceberg... Hitting, for example is also very important part of the equation. If a kid can't hit, he better be at 1.75, blocking everything, calling a great game, be 6'4", etc if he wants to get a look at playing in college (Sorry to run on...)
As far as catchers (and all high school players) and hitting is concerned --- If a player, any player, cannot hit, he will be DH'd for. Most high school mangers (right or wrong) will put their top 9 or 10 hitters in the line-up and make due on the defensive side. This is more important with the BBCOR bats than it has been in the past as runs are limited and a manager want to put in the kids that give him the highest probability of getting on base.