Now, see, I have an issue with this. As a video watcher who is also a father, it is indeed possible that my son may be with me at some point where I am buying "M" rated porn films. My son is quite young right now, so no employee could realistically believe that he's going to be watching the porn, but 8 years from now or so, I foresee myself still watching and buying porn. What then? I have to leave him at home or tell him to bugger off to look at the TVs while I jerk off to the porn?
And my age group gets older, this situation is going to become more and more common.