You are not getting it right if you are comparing gambling with trading. They are completely different but their risks can be the same for people that do not know how to trade. But if you ask an experienced trader and gambler if trading is the same as gambling, the trader who is also gambling will tell you no. There is more probability for traders to make money but which is not true for gamblers.
Trading is only simple and I think everyone on their normal/right minds can understand it but what is hard is knowing the fundamentals around it. Trading has variations too like we can choose our risk, same as gambling, so both can be the same I guess? It is just that gambling is more on the entertainment side because they are games and sports while trading is more on the business side because we can only see boring charts here.
Some people could have been trading since many months but do not know how to trade.
This would be the same to what I'm saying above/earlier but many months seem long enough already for them to not know the fundamentals of trading. It might be better for them to just quit already than lose a lot of things for nothing.