I'm very relieved!
I've been told before that my brain seems to be "wired" differently to other peoples, and I will admit that there have often been things that no one else has found funny, or seen the way I do, but I still find the idea of "hospitality" trousers amusing!
By my reckoning, hospitality trousers are, by definition "hospitable", so therefore are there "inhospitable" trousers? Do they have unopenable buttons or zips? Are the legs lined with nasty scratchy fabric (or sandpaper, or barbed wire) to act as a deterrent to anyone trying to enter them? Do they have signs attached saying "no hawkers, no circulars, or "we only see people with a pre-booked appointment". I've just thought that perhaps the sign might even say "Members Only" 
Perhaps they are like some hotels, "Excellent facilities, but no ballroom"
PS Love the reproduction furniture!