total agree for cars as 99% of cars depreciate and interest is not deductible from taxes.
for mortgages in the USA, there are tax reduction advantages for those who can itemize deductions, build equity, and invest for a store of value consideration. I also firmly agree don't buy a big house or house in an expensive area with a large mortgage that you can't easily pay when times get tough. 50 years mortgages are not a good idea.