I agree with Louis as well. I do think that Newt and maybe Dumbledore might have taught Jacob some things about a wand and how to use it properly in order to help him better protect himself. But I also think that Jacob being a muggle or no-maj will never be able to use the magic in the same way as an actual witch or wizard. Take a Squib for an example. A squib is typically around magic all of his or her life, growing up with magic parents and possibly other magic relatives, but the Squib will never be able to actually perform magic, especially in the same way as the others. So I think Jacob will learn to be able to use the wand to protect him from bad witches and wizards, like Grindelwald, and maybe perform the simplest spells, but I don't think he will be able to do much more than that.
I think if I was a muggle or no-maj, going to Hogwarts, I would see the old ruins and danger signs. I would be very weary going past them. But I would then I would be very suprised to find a school hidden within those ruins and see witches and wizards running around or going to magic classes. I think that would be pretty cool to see!