Based on a 2018 Gallup poll , only 37% of young adults (34 and under) invest in the stock market. That's pretty alarming. It means more than half are hindering their ability to save for retirement. By not investing early, the power of compound interest is dampened. Compound interest works like a snowball on a hill, the taller the hill (the longer the runway), the bigger it'll grow. The sooner you invest, the more money you'll have. Many are simply stockpiling money into their bank accounts. Checking accounts typically don't pay anything. With savings accounts, you're lucky to get 1-2%. Inflation is about 2% . Thus, with a checking account, you're losing money every year in terms of purchasing power. With a savings account, at best you break-even. Stocks have a higher expected return, averaging ~ 7% annually (inflation-adjusted). The higher return is due to the higher risk. Stocks are more volatile, able to dramatically go up and down in the short-...