Once people can earn many profits of money from day-trading, they will be more interested and addicted to trading.
For a very professional trader, he can actually manage not only the emotion, risks, and funds, but also manage the time wisely. They can do trading at a certain time, by using time management, but still having good quality on trading. But of course, they can also manage themselves to other activities that make them still healthy for physically and mentally. Because there are still aware that trading is not the whole world, this is part of life.

But for people who are only concerning about getting much money and more money and they can earn it through daily trading, and moreover, they cannot control themselves to get good and wise time management, they may be addicted to trade more and more, without paying attention to the time.
I have some friends who do this day-trade. They cannot have good sleeping time, just focusing on the monitor, and really decreasing the quality time with family, with social, and also for the shake of their own health. It may be called a daily trading addiction.
But I cannot blame them because they may have certain purposes or cosndierations.

But for gambling vs trading addition, both may need to manage and help, but gambling may be worse.