I'm amazed by how painful I find this.
I can't disable SIP on my work laptop which means I'm forced to "sit through" the macOS animations as I switch between desktops. Feel like I've wasted hours of my life watching desktops fade-in/-out.
"Well, let's say you can shave 10 seconds off of the boot time. Multiply that by five million users and thats 50 million seconds, every single day. Over a year, that's probably dozens of lifetimes. So if you make it boot ten seconds faster, you've saved a dozen lives. That's really worth it, don't you think?"
https://www.folklore.org/StoryView.py?story=Saving_Lives.txt