It's not like there's a ton of Photopass Photographers that'll take your picture for you with their camera AND your own.
Going down Main St. in the MK towards the Hub, there's at 1 every 20 feet or so.
Any CM is normally willing to help with your quest for a picture, and more times than not, they'll actually tell you to move a certain direction or whatnot and get a better photo for you!
Also, just thinking about this, with a selfie stick, how tightly are those things in there? I mean, crime in Disney isn't a huge problem, but if you have your couple hundred $$ device on the end of a stick, away from your person, it's like a personal hand off to a would-be thief.