[RickM]

I would also impress on the young man that he has not only lost his ability to travel freely but has also obliterated his credit for many years.
So he can forget about loans (at least low interest ones) and securing work at many businesses who now do background checks and credit checks.

If he is not willing to sit down to develop and follow a plan to straighten this out I'd ask him to make other living arrangements. In my book this is as life changing as a DUI would be.
Good luck.