I use wired in-ear headphones while cycling for convenience of not needing to charge so they are always ready to go when I go for a ride. Also I wear my phone in the back pocket of my jersey, so its an extra string holding my device in case it would fall out (never happened, but just in case). I use some half-decent BT headphones for media consumption when home.
Please someone tell me a scenario, where I would use the eyewear-free 3D features in everyday life? Not just a magic trick, but an actual practical use.