Investing and gambling both involve risk, but one shows you the odds upfront....

https://wiki-fusion.win/index.php/Why_Do_People_Say_Casinos_Are_Negative_Expected_Value_by_Design%3F

Investing and gambling both involve risk, but one shows you the odds upfront. Casinos publish return-to-player (RTP) percentages, letting you see the expected value, which is usually negative