Family members have used my X100s, the rare times I'm included in a shot. Or ill hand it to someone to grab random pics while I'm using the dslr.
Almost always, no matter how I set it up for them, they'll be back at least once with "I think I did something wrong there!" , thankfully it'll just be they turned on the flash by accident, or macro mode, or knocked off the LCD. Surprisingly easy things to do, and no issue unless yiu don't know how to undo them.