Why every people say that?
It is so difficult activity

mining of bitcoin is hard in these days
Yes indeed. But right now it is worth to mine since the price of bitcoin is increasing constantly. Although the reward is halved. You can still get some profit as its price increases. You just need to properly configure the setting and choose the right rig for your mining process. Mining is a great to entertain yourself and make some money at the same time.
mining makes you happy ?

you create your own money
Yeah, but it requires some advance technical knowledge for you to be able to earn money. Otherwise, you are just wasting money and effort. You are just happy without earning some money

hahaha
