Could Mak play this or is he too young still?
There is absolutely nothing overtly inappropriate in single-player - no blood or anything like that - but being ambushed from behind by enemies, especially
Creepers, which explode and can destroy your creations, can be scary, especially when it happens deep underground (When the lighting in the game gets dark, it gets BLACK, and darkness is where monsters spawn.) There is a "Peaceful" difficulty option that removes all enemies and grants regenerating health, but that removes all of the challenge from the game.
On multiplayer, it varies from server to server, as with most games with user-driven content. Some are moderated and have good communities, whereas some have chats filled with inappropriate language and statues dedicated to certain unmentionable portions of the male anatomy.
If/when the server I make gets off the ground, I will make sure it stays PG, but obviously I can give no guarantees for others.
In other Minecraft news:
Minecraft: Pocket Edition was released for the Xperia Play! It costs $6.92 and will remain exclusive to it for some unspecified time, then released to all other Android devices and then the iOS. Since I don't own an Xperia Play, I don't know what it's like, but I've heard it's like an expanded Minecraft Classic.
-Canama