Agree on this. I've learned so much from working at startups.
However, if you want to found, I'd suggest joining even earlier, pre-seed or seed stage startup, where you see more of what it takes for an early startup to succeed.
Hot take: Don’t drop out.
Take a semester off and go work at a Series A or B startup instead.
You’ll learn more in 6 months than 4 years of “building.”
Most people don’t need to start a company - they need to see how a real one runs.
Too many students are “dropping out” and building but don’t know why they’re building.