Mangrove Jack's Hard Apple Cider Recipe Kit, 6 gallon

Is this kit Gluten free

Can this be bottled like wine?

What does this kit include? Does it include the yeast, fining agents, and instructions? I'm shopping for a gift and while I am a wine maker, he has never done anything like this before. Would this be a good kit for a novice? How does this ingredients kit compare with the standards of wine ingredients kits?

Why does this need sugar? Is it because the apple concentrate doesn't make a full 6 gallons, or did it lose sugar in the concentration process?