It teaches simple math, Geometry, spacial awareness, boosts creativity, sparks a love of design and art, does all this for mechanics with the redstone, helping that sector in future which is one of the most important sectors in today's economy and the mods, this is the biggest reason educators enose this game. It may seem simple to someone who has dabbled in coding or pirates games and shot like that but this is such a great way to teach kids to code because they want to and actively seek out the learning themselves. Coding is the one most valuable skill today, it can earn you a living or you can become a billionaire. ...and the single greatest aspect of this game, the reason every child should be forced to play' it is the love it will spark for RPG elements in the next gen of gamers, securing deeper games for all gamers through higher sales. You think skyrim would be such a big deal without mine craft, eh? I fully belive this game will bring about the rise of the RPG as the dominant genre, it has begun if you look closely at the most hyped games.
Everything in the above reply is my opinion, from my own perspective and not representative of reality outside of my own head!
-Android user, please be gentle with critique on my spelling.