When I heard of the Academy idea back in 1990, I virtually puked. Many did. Why would it be any better now given a string of prequels since 2000 that, at best, are highly contentious and divisive and potentially implosive? It's just another barrel-scrapin' prequel. Watching frat party cadets seems incredibly inane, we know how they all aged since then, you know they're going to muck up something that makes the transition from young-Kirk to James T Kirk circa 1966 implausible at best, just coast on stereotype mannerisms and nostalgiawank callbacks and not do anything of depth or detail, and I just gave myself a coronary when imagining a meld of "Star Trek" with "Police Academy 5"...
It's also worth noting that while there are a lot of shows on TV dealing with high school drama - there are very few shows dealing with college drama. Starfleet Academy is the equivalent of college, not high school, and a show about college may not appeal to the same young audience that a show about high school does.