Tamar Jacoby:

Dakota Blazier had made a big decision. Friendly and fresh-faced, from a small town north of Indianapolis, he’d made up his mind: He wasn’t going to college.

“I discovered a long time ago,” he explained, “I’m not book smart. I don’t like sitting still, and I learn better when the problem is practical.” But he didn’t feel this limited his options—to the contrary. And he was executing a plan as purposeful as that of any of his high-school peers.

It started in his junior year with release time from high school to take a course in basic construction skills at a craft training center run by the Associated Builders and Contractors. The next step was an internship with a local contractor, Gaylor Electric.

This summer, he’s at Gaylor full time, earning $10 an hour plus credits he can apply at the ABC training center, where he intends to return this fall for a four-year apprenticeship. Mr. Blazier, 18, beamed as he explained his plan. This was no fallback, no desperate Hail Mary pass. It was a thoughtful choice—and he was as proud and excited as if he were heading off to the Ivy League.