Hey Stephanie,
You never mentioned his age I don't think, nor whether his interest is more along the lines of a career or a hobby. Or yours for that matter (well, not the age thing, won't go there!).
I've always been an advocate of self education, primarily out of necessity. Hanging out here, surfing the myriad of nicely put together home shop web sites, maybe getting some old machine operations books and other literature is a great way to start.
I'd caveat the advice against buying machines right away by mentioning I wouldn't buy EXPENSIVE machines right away. If a decent little anything comes along at a good price, get it and have some fun. A nice little home shop lathe (Atlas 618 or a little larger, 9x20 imports, etc) really aren't that expensive compared to many "toys". No matter how much or how little you two decide to get into this, the little machine will always be useful.
I think the Gingery series of books are a great read for someone who knows NOTHING about this stuff and is interested in some history, practical stuff, how these machines came to be and are made, and how to use them. I'll probably be banned from this site for even mentioning it! But they got me off to a great start. Building one of his machines is an excellent self apprenticeship.
Like all new ventures, it takes a bit to even get to the point where you can ask a question which has a fairly finite answer. By a huge margin, this is the best online resource I've seen. Finding a local home machine shop is going to be your best hands on sort of stuff. Not much around in the way of clubs and stuff though, so finding someone to just show you the ropes isn't trivial, but keep your eyes open. Once you know what to look for, all sorts of opportunities come into view you never knew were there.
All answers to these sorts of questions just generate more questions, so ask away.
Tools