For many desktop sites, the Remember Me checkbox is a very useful and important part of signing into a site. And, it is unchecked by default (there is a lot about this on several UX-based sites).
On Mobile Web, however, there is a stark disappearance of this feature. Researching this further I was unable to find any definitive sources as to why. I have some theories (a mobile phone is not the same as a computer terminal, which could be at work, a library, or home - it's in your pocket. Plus logging in via email is a PITA on mobile, but that shouldn't stop some from offering the option.).
Does anyone have any research that would justify the removal of this feature for Mobile Web? Sites like Facebook, Yelp, LinkedIn, ESPN, etc. remove it for Mobile Web. Many have it, however, for desktop. What's the "right" answer, and based on what evidence?