The reason why most people don't like having their photo taken is because they don't like to see themselves in photos.
If you look in a mirror, it is simple and subconcious action to zero in on the part of your face that you dislike the least, and ignore the remainder.
In a photograph, that is not possible, and the image that you see is rarely the image you like to have of yourself - ergo, a dislike of photos leads to a dislike of them being taken.
For some reason, I am missing the 'zero in' reflex, and can be genuinely startled by my own reflection, and see myself exactly as other see me, which of course I am not especially happy about.
As long as there are ladies who see men for what they are, and not what they look like, (God bless the present Mrs Hughes!) men like me will get by, but I yearn on a daily basis to be a handsome man.