If it appeared to turn on just by opening it, it wasn’t off in the first place. It was in sleep.
Your system integrator may have disabled it for some damn fool reason by default, probably to make it appear that the machine “boots” faster if the user is bamboozled into never truly turning it off. But if you have administrator access you can always turn the option back on.
Could this be different depending on what type/brand of pc you have?
I remember being annoyed at having to log in to shut down my laptop after accidentally opening it
If it appeared to turn on just by opening it, it wasn’t off in the first place. It was in sleep.
Your system integrator may have disabled it for some damn fool reason by default, probably to make it appear that the machine “boots” faster if the user is bamboozled into never truly turning it off. But if you have administrator access you can always turn the option back on.