I think you should encourage him to go for it, rather than playing devil's advocate. After all, you said it's been his dream since he was a kid. Assuming the classes won't cause you too much financial hardship, I think pursuing dreams is important at any age. If he hates/can't keep up with the math and science, he'll figure that out soon enough, and be able to put his dream to bed on his own terms. And it's not a hard and fast rule that you can't break into broadcast over 35...less likely, of course, but if he turns out to have a natural affinity for both weather and being on camera, you never know what could happen. Worst case scenario, he doesn't get a job, perhaps doesn't even finish the degree. In that case, think of it as a semi-pricey hobby...but he won't live the rest of his life wondering what if. Just another perspective.