How can I start my laptop by keyboard without pushing the power button on the laptop?
I would say this does not work and why should you be able to boot up the PC via the keyboard?
I do not know why you are overwhelmed or uncomfortable using the (power) button to turn it on. Maybe you are too keyboard fixated.
At some point, when you grow up, you have to go to work and take care of yourself… Then you'll have to deal with heaps of problems outside of your fantasy game world and then you'll realize that the problem you're describing is not a problem.
You can usually do that in the BIOS. There's option Wakeup for LAN, Tastur, USB, etc. Of course, your PC / laptop must have this function in the BIOS.
