Now you're being silly. OF COURSE you want to be an engineer or scientist. You just don't know it. (/s)
My sister, a math teacher in Baltimore, told me yesterday that the big push to get more kids into STEM fields has paid off big time and now there are too few kids in the humanities fields. Snort! Unintended consequences.
Over the next decades, I'd bet that the engineer and scientist graduate rates don't change one bit nor do the number of professional engineers. It's one thing to break pushed in that direction because it's trendy and fashionable. It's a completely different thing to got into those fields because that's what you are passionate about. People who are not passionate about those things will drop out and wind up back where they would have been without the big STEM push.
There are only so many people who can really do the math required to be an engineer. Pushing marginally skilled people into engineering does not mean they can do the math.