I get your point Senior but I think say, some other persons Dey also develop some skills due to their frequency with gambling.
That one na for skilled based games and no be lie because e get some kind games wey you go dey gamble and with time you go get small experience wey go fit help you the next time wey you dey gamble but e no still mean say you get 100% assurance say you go make am and na why people dey advice say make you no go dey copy another made bets.
Make we take sport gambling as example, as you dey play am often, e get some kind skills wey you go develop wey newbie wey just dey start no fit get but still you have to depend majorly on luck. Trading na say A na A and B na B but gambling, A fit be B (hope you get the points now). If you learn trading well, you can be guaranteed to win 70-80% of your trade always even though you just dey wake you up from sleep na why we get traders wey dey make am after they done learn am well. Gambling is just strictly a luck game.
Going by your description, we can refer to Trading as low-risk Gambling to an extent. But going by the way of a newbie who you're trying to convince to join trading, it is purely gambling. I've seen people loose almost all their assets with anxiety in trading.
Sport betting can also be mastered even though it's always 50-50. Sport betting and trading is linked because even trading is 50-50 however, trading is a better option than betting. Until you learn the complete trading trick, it remains gambling.