Because I don't have any idea about it
Discussion
Then you have to ask what you want to know!
Maybe asking I'll get the enough knowledge to know what is mining or running a node. But, get the hardware to make it possible is the hardest part of this matter. Not anyone can access to these devices, I guess.
For sure hardware sometimes is difficult but just run a full bitcoin node you dont need a expensive computer. You can use an old one with RAM 8GB or a Raspberry Pi 8GB or other chepear options like RockPi, OrangePi... Tell me if I can help you.