"Real Estate Always Goes Up" — Robert Kiyosaki

Robert Kiyosaki's claim that real estate always goes up is dangerously misleading, having bankrupted millions during the 2008 crash while ignoring his own corporate bankruptcy filings. This advice is far riskier than the average investment strategy; during 2008, values dropped over 30% in some areas, and a 2022 Federal Reserve study found leveraged homeowners were 40% more likely to face foreclosure than those with moderate debt. It also underperforms the suggestions from #10 on this list, as Kiyosaki's own companies have filed for bankruptcy seven times, proving even the author fails to follow his own rule.