Standard cameras are not wireless and personally I find the body mount to be much easier for most shops than glasses or a hat. With a body mount you can keep yourself square to the target while turning your head to look at whatever they are demonstrating. It is also much easier to block the camera at chest height which can be crucial when walking into a room with mirrors (to block your image), walking behind a leasing agent going up stairs (they really don't want to see someone's butt), or shopping at a senior living facility where they prefer no residents are on camera.
I just have to ask this question. What kind of video shops are you getting that require business or even business casual attire? I cannot think of one single shop where I wasn't wearing jeans or shorts. But then again, if the guidelines for a new car shop say business casual, I laugh a lot and then go put on my jeans.
Equal rights for others does not mean fewer rights for you. It's not pie.
"I prefer someone who burns the flag and then wraps themselves up in the Constitution over someone who burns the Constitution and then wraps themselves up in the flag." -Molly Ivins
Never try to teach a pig to sing. It's a waste of your time and it really annoys the pig.