> Most people just get up and leave it there.
I used to get very anxious about leaving stuff laying around even amongst people I know wouldn't steal things (think like a meetup or something) and eventually got over it. If I'm concerned I'll ask someone if they can watch my stuff. It depends on where I'm at though obviously. I think in Columbus where I live most places you can do this and 99.9% of the time it would be fine. I don't begrudge someone who doesn't trust this though. I'm familiar with "if you lose contact with it, it's compromised".
> It's the little things that give our social status away
I'm not with you on this one. I don't think a single person at a coffee shop is looking at you like you're "of low social status" for taking your backpack to the bathroom. They probably just think you don't want your stuff stolen...