His bat will get him in the lineup faster.
He's still young and IMO doesn't need to specialize yet.
However, I have seen a number of guys "suffer" from versatility, either because the players who own a position or the players who have a bat but have some limitations (ie 'Joe can hit but he can't move, let's stick him on 1st to keep his bat in the lineup') get placed first. Then the versatile player gets stuck in the most important hole, which may not be best for him. Or, he may be taken up to varsity to be utility, playing sporadically...while guys on JV are groomed to take over positions. Much depends on the quality of the team around him as well as his own strengths.
For the above reasons (having experienced some of the downside of versatility on his AAU team), when my son got to hs he decided he was presenting himself as a catcher only. His role was clear, coach knew what he had, and he had the opportunity to develop his skills at his position rather than be jack of all trades, master of etc. As it happened, he still played a little OF (as a rest), even pitched a few innings when the team needed it, but he owned a position.
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From 'Nice Guys Finish Last' by Leo Durocher:
Baseball lives at the center of a never-flagging whirl of irreconcilable opinions.