Trading that is done like gambling is usually or most likely done by traders who do not have the right knowledge about what and how the world of trading really is, as you said that they only rely on luck in seeking profit, meaning that it is clear that they do not know that in trading the opportunity for profit always depends on how much knowledge you have and how skilled you are in executing the market.
That's why knowledge has a big role in trading. Having a proper knowledge is a must to trade in the right way. It is not working like gambling which can rely on the luck, the success in trading will depend on the knowledge. Even there are people who claim that the success in trading is about luck, too. It is impossible to succeed if they don't know how to trade properly.
On the other hand, as we know, it is not uncommon to see traders who end up failing in the sense that their involvement in the world of trading actually makes them lose a lot of money instead of making money, and most likely they are traders who treat trading like gambling because they do not want to learn various knowledge about trading or maybe even because they do not know that the opportunity for profit always depends on skill.
Yep, it is easy to fail in trading if we trade in random ways. Trading in crypto isn't for people who expect to succeed because of luck factor. Trading surely requires certain skills or specific abilities, it is only possible if someone has the knowledge. It is impossible to do technical or fundamental analysis without knowledge, and we can't choose the right strategy in trading if we don't have sufficient knowledge. Well, we can't talk about the opportunity for profits once we have no idea how to trade it in the right way.