Been there a few decades ago.

College is WAAY too expensive to attend in order to "find oneself". But engineering takes many casualties, especially freshmen.

I suggest community college, self-financed, of course. He can hold a job and take a few classes until he finds something of interest, then re-enroll in a university with credits towards a preferred degree.

If engineering is still of interest, I would NOT recommend the 4-year track. He should take the minimum 12-hour/semester course load, and stretch out to five years. His grades will be far better, and employers don't fault anyone for extending their undergraduate term.

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2009 ML350 (106K) - Family vehicle
2001 CLK430 Cabriolet (80K) - Wife's car
2005 BMW 645CI (138K) - My daily driver
2016 Mustang (32K) - Daughter's car