The investment in stocks, ETFs, REITs and other funds although somewhat volatile at times, is seen as a safer and reliable investment than cryptocurrency. An attractive feature of investing in stocks and other funds are dividend payments to shareholders.
People invest for different reasons and every investment style is unique. What works for some people may not work for you. Make sure you plan for ups and downs in the market and never invest more than you're willing to lose.
Stocks and exchange traded funds or ETFs are traditional investment opportunists into individual companies or a fund that contains many companies.