It is relevant if you have sufficient resources. Bitcoin mining, right now is only worthwhile if you can do it on a large scale. The rising difficulty means that the ratio of returns to your hardware is pretty small. It's not worthwhile unless you have a lot of space and have near free electricity.
As you are a newbie, i wish you are not reffering to Cloud-mining. Comments above resumed the actual situation of bitcoin mining. Note that solo mining wasn't profitable since a long time. However, you can still try with some altcoins if you consider investing a large budget to cover costs of powerful rigs and electricity.
I don't advice you to be opened for private discussions. All what you are looking for can be found in public documentations/discussions. Scammers may contact you to convince you buy stuff.
Exactly.In my country due to the high electricity cost and rentals and along with the high equipment costs this is not making much sense
For me it still relevant. I understand that your a newbie and wanted to learn about bitcoin and lots of things about it.