Ladies and gentlemen, I'm here 'til noon:
Debt. I guarantee you he uses debt to be an 'adult.'
Responsible financing is not "debt." While my money grows for our retirement I have a sub 1% car loan and a low 3% 15 year mortgage on a house well below our families means.
A car loan and mortgage aren't debt? That's news to... everybody, really.
You should get this information to your bank, ASAP. They are over-charging you. You have, after all, a debt to income ratio of zero, which is phenomenal for a person with a car loan and a mortgage.
Where is the world is insurance $100's of dollars a month? The cost of the vehicle is in your control; the first 5 years I worked I drove a $1,200 VW Golf and spent maybe $2,500 on repairs and maintenance (all cash) making my monthly "leasing/financing" charge $62. I put 50-60k on it; Uber costs about $1 per mile so I think you're right that $50,000 less than what I spent on my Golf for 5 years.
1. Depends on the coverage, provider, and location. Where I am, basic insurance for a $5,000 car runs approx $120/mo. Somewhere in the ballpark of 70-80 if I were to drop certain levels of liability coverage and accept a massive deductible.
2. And what did you pay for in gas and tag fees over that period?
3. Your situation isn't everyone else's situation, which is what makes your comment about "being an adult" so ridiculously immature. Believe it or not, not everyone economically benefits from owning or leasing a vehicle. Owning a car isn't being an adult. Properly managing your finances is, which sometimes involves not purchasing a vehicle (or another one, in Erick's case). This is where services like Uber/Lyft/Taxis come into play.
Edit: Also, regarding my insurance comment, in the post you quoted I was referencing total ownership costs per month (as indicated by the list), not insurance alone. All total, it costs "hundreds" of dollars a month and "thousands" of dollars a year to own a vehicle.