He’s not the brightest crayon in the box.

There’s a pretty big chasm between those who fall for get-rich-quick schemes and those who invest safely and steadily over the years, so they’ll be millionaires by 60. The path to wealth at a young age is probably somewhere between «quit your job to become a Twitch Streamer» and «only invest in low-risk ETFs,» but most people aren’t financially informed enough to take smart risks. It’s essential to be realistic with yourself about your ability to handle higher-risk investments. I don’t trust myself to predict which individual stocks will rise enough in the short term in a way that will make me rich by investing in them, so I stick to the good old-fashioned stock market and trust that 2008 isn’t right around the corner. 

Even if you’re investing in riskier stocks, that’s probably better than «investing» in an asset that’s guaranteed to depreciate rapidly in value. Buying cars with the hope that you can flip them and resell them for more money is quite a risk if you haven’t proven to yourself that you have the skills to do that. Just because you buy a car that’s worth $40K doesn’t mean that you will be able to resell it for that much. In fact, it’s almost guaranteed you won’t be able to sell it for that much. The value of a new car drops by thousands of dollars the very second you drive it off the dealership lot.