In New Jersey, New York, and Pennsylvania if you work for a public company you can not legally have the word "Engineer" in your job title without a degree and, if working for the state, a PE. The word engineer also separates $25,000-$40,000 a year between those jobs and inhibits any sort of promotions. I'd imagine it's like this in other states. I would argue you don't always need a MS in engineering. I know we aren't in Canada or the United Kingdom but you cannot work as an engineer without a degree there. So I really don't think that is exaggerated greatly. Perhaps 10/15/20 years ago, but no company is going to hire a 22 year old without a degree claiming to be an engineer with nothing to prove for that.
Without a PE you will be limited at larger companies, I'd imagine like Disney, for responsibility and liability issues.
Tell him to go to college, get a degree- even if it isn't engineering. I'd imagine job security is important to both you and him and any sort of degree will aid in that.