It should be known to you that gambling and trading are different things in one word, even you can earn daily from trading if you can gain experience with good understanding of trading. It is possible to make good profit from trading and your money is guaranteed that no third party can withdraw your funds but profits may be more or less and losses may also occur but you will not lose your entire money. On the other hand play gambling where after placing a bet then if you lose then you lose the entire amount, and if you win then you can earn double money.
Trading and gambling are not similar because traders use their knowledge and make use of their skills to make decision while gambler just bet and then leave the results on destiny. In cryptocurrency trading people are often predicting the price of future because they have saw such a dumping and pumping price in past years.
Traders also visualize the things before trading and first make research that which coin will be make their trade better as they never decide blindly without research. But the main thing here is the experience, knowledge and research so if you remove these things from trading then trading will be another form of gambling therefore people often become confused with trading and gambling.