This has to be one of the worst innovations in recent memory.  And this is coming from someone who loves Twitter.
 
I do not care, as I am sure most people don't, where you are at every waking moment.  It is YOUR life.  Not mine.  I have enough issues keeping my own shit in order to be concerned about what restaurant you went to.
 
And really, why would you WANT to broadcast your location at every moment?  Why not just wear a GPS beacon and let us know how we can connect to it?  The idea of people being able to follow you around doesn't creep you out in the slightest?
 
Some people will tell you that it's a way to get people to try new places.  If you need a dumb phone app to get you to go outside your comfort zone, I weep for you.