Well, when you let an 8yr old take the keys to the car, who's the idiot when they smash it up. 

Just like you can fix your own car and YouTube your way through it's not for everyone.

If you're applying for a Conventional/FHA/VA/ or USDA loan, then they will do a "global cash flow" where they take into account your PITI (Principal + Interest + Taxes + Insurance (hazard and flood) on all properties (second mortgages included), HOA payments, car payments, student loan payments, credit card payments, and installment loan payments in the numerator and your gross income in the denominator.

Can I make sure your car is stocked each day with everything you need in the field?

The reason they have money for new cars is because you aren't holding them accountable.

This would work for many different business models that have an owners quarters such as some storage facilities or car washes.

I recommend a home with at least a 1 car garage, 2 car would be great, because this is a big draw.

This debate is like asking the question = are cars safe to ride in? 

Single Family. 3 bed (all can fit queens) 2 bath and 2 car garage. 

But a lot of those made a lot of money, one was a converted 2 car garage.