Usually I only gamble in my spare time, I will not force myself to gamble when I have other activities, especially if gambling interferes with my rest time.
I have an experience about my friend who steals time to gamble when they are working, this is usually the beginning of the addiction coming, because they don't remember the time when gambling and are willing to leave something important, such as work which is a responsibility.
This is a good habit to emulate. However, gambling in your spare time is only beneficial if you avoid spending more than necessary. I have noticed that a second is enough to ruin a gambler financially, so gambling in your spare time does not imply that you have financial discipline.
Some gamblers are reckless, but they do not gamble at work because the employer's check on them is high, and they do not have the opportunity to gamble, even though they have a strong desire to gamble. And so, whenever they have the opportunity to gamble, they do so recklessly.