Since there is speculation involved, many compare trading to gambling. But that isn’t the case as trading and gambling are two different things. Trading requires preparation and market analysis, which is certainly not what they do when they gamble.
Speculation is for trading more than gambling.
In gambling on EV- games there is a quick satisfaction involved in making the best and losing or winning it. In EV+ games there needs to be background workup of the assets and their charts before making a decision - again it will take time to get filled. Therefore trading on spot is not compatible with speculation completely than what futures or marging can be compared.
I think it is better to follow what you love to do. If someone likes trading and makes profit in it, do it, don't demean yourself that you are actually gambling.