Even though they are claiming that they are doing it for fun and pass time, i believe most people gamble for profits. If they are doing it for fun then there are other better options available.
What's better options to do beside gambling with your little money for fun?
Personally, when i gambling (mostly on dice game), i've found my adrenaline got pumped when i chasing at low winning chance after long streak losses. Not sure you can find this feel in other "better options" you have.