[1] - https://www.dell.com/community/en/conversations/xps/faq-mode...
EDIT: Added source cited in the article
I do. I had a few poor experiences with laptops accidentally turning on while in the bag between 1995 and 2010.
After the last time, in 2010, when the thing started beeping due to overheating, I started the habit of shutting down/hibernating completely instead of just closing the lid and popping it into the bag.
What an awful laptop.
Don't conclude from your own carelessness to others. Even just one person shutting down their laptop will instantly disprove your claim, that "nobody does XYZ". So you will basically almost always be wrong with such a statement/claim.
At the moment, the user cannot choose, but is forced to be always "on".
When it is working, S3 sleep covers my needs perfectly. And it is not about email updates. I don't want my laptop to do anything while in sleep. It's that simple.
Sure, S0 on Windows makes your laptop turn on in your bag for impossible-to-disable updates, causing it to overheat or the battery to run down. And no laptops on the market will S0 on Linux without running down the battery in less than 24 hours.
Why should hardware vendors mollycoddle users who make the foolish decision to use either Windows or Linux?