In gambling, you can directly know whether you have your profit or loses because of gambling no need to hold coin if you see that your profit was not there. Unlike when you are in trading you must have more time to monitor the price value of cryptocurrencies that you are in purchase to avoid big loss if ever. Trading is lower risk than gambling but it is almost like in gambling when you invested or trading another coin must have more skills in trading.
I agree that in trading is not too risky than gambling.
In trading you were the one who can control either you'll gain or lose, also in trading you can hold it until your target value. Trading can be more profitable if you'll take time to monitor the value, it has a lot of strategies you can apply in trading to become successful on it.
On the other hand, in gambling you only have two choice either you win or lose. You cannot wait for the perfect timing you are waiting for because in every game you have to put money, the probability of winning is kinda little. Also gambling sometimes , is if its your day you probably win but if not for sure you'll gonna lose everything you have.
Therefore, i choose trading instead of gambling.