It is interesting to discuss these two categories.
Gambling and trading are different? What if I give the opposite parable, that Gambling and trading are the same?
Actually, this depends on each person's perception, but a little bit from that, actually between gambling and trading is not much different. The principle of trading itself is how there are 2 components that are exchanged, does this also not apply to gambling?
Let's explore more about this world, where in gambling there are exchanges that occur between currency and betting (both losses and profits, and this also applies to trading).
You're making a mistakes here, the definition of both gambling and trading doesn't depend on each individual understanding. This mistakes is why people gamble while trying to trade, they don't have a strategy but just hopeful the market will go in their favor just as it does when they're gambling. When they do this and because successful, they think that's how trading works but this type of traders will lose everything soon in the market.
Gambling has no work needed, you don't have to study gambling because there's no pattern to how to win but if you're trading and learnt how to interpret the market to be able to predict the direction the market will move you can find a pattern and use it to make successful trades.