I happen to be born into a relatively rich family. Throughout my 4 years in nus, I drove a convertible porsche to school, even with a probationary triangle during my first semester of school which has gotten a hell lot of attention. Now that I've graduated and I'm working already, I realise the cost of keeping the car (depreciation+car expenses) is more than my take home pay after CPF contribution. Thus, although my parents have fully sponsored the car (fuel included), I still asked my parents to sell it. However, they said they could easily buy one with 3 months of their income, and tell me not to fret as their finances are fine. How do I get my parents to understand my situation?