Because the serfs working in all the 24 hour establishments don't themselves need a life. There are also noise issues in mixed use neighborhoods as seem to be being advocated for. And business volumes don't justify 24 hour operation of most businesses.
I'd never trust installing their apps on my phone. The Facebook app admittedly listens to the microphone. So Facebook messages will largely become a black hole for me too.
No, it was updated since then. Its header/footer format is certainly was not common in 1993, it has search box and things like that. Anyway, it is usable, does not require JavaScript, and loads really fast.
She would turn from that position the moment it became financially or politically expedient to do so.
Edited: for those downvoting, I invite you to consider how her (stated) positions on abortion and the black community have changed over the years. Everyone learns and changes their opinions over time, but her changes are too politically convenient to be simply personal development.