Well, in my own opinions trading and gambling is not the
same, but they have similarities.

However, the problem here is the mind set the approach is all that matters here, for instance some people use the mind of a gambler in the forex market, hence for them the forex market is no better for them than a gamble.

While I have also seen gamblers using the mind of an investor in their bet stake.

Some analyse games for almost a year and use just big money to cash out not too big money. While in trading some want to cash out big by using small money to cash out big money without adequate planning.

Hence, it all about your approach to the both.