Two worlds that seemingly is similar but are worlds apart in terms of nature. Digital options may offer an option where you can speculate the price in a given time frame but there are internal and external factors that can be considered in order to verify your assumptions. Furthermore, people develop techniques and skills in every trade successful/fail trade they do since experience contributes to it.
Unlike in gambling, there may be techniques (i.e probability, etc.) to lower the risks but everything revolves around luck and the odds. Not to mention, there are various negative implications that an individual can succumb into in the long-run.