it would be interesting to see the ambition and execution discipline of a young person who made in to, and through, Stanford applied to a traditional trade. If i may use a dirty word, "disruptive" comes to mind.
There's plenty of guys that go into the trades (thinking more like welding, machining, diesel repair) that quickly start running their own truck or shop, work for themselves, maybe hire a few employees and make bank. That's what it would likely look like I imagine.
I know a guy who dropped out of HS and did this as an HVAC guy. He bought a house on a lake, a second home at the beach, and built a special garage to house his car collection. After an ugly divorce that cost him almost everything he has rebuilt (but not quite to where he was before). It takes a lot of work but it can be done. As others have observed, it's unfortunately regarded as a low-status option on the coasts