I would not like the cameras on the outside, it would also be a bit elaborate to route the cable, which rule out most people that do not have a strong DIY genome, and a respectable tool box.
For instance in my family ( my sister - her 3 kids where at least 2 of them are very adult ) well none of them have a electric drill, so when pictures / lamos have to be put up ASO, Uncle Brian are on speed dial.
After that is done, well no one call uncle Brian unless they need more help or a strong shoulder to cry on.
Really my family,,,, a funny bunch.
My sister got in a situation ( argument ) with my mothers little sister, as a result of that none of my mothers still living siblings visit her or even call her,,,,,,, it is quite embarrassing for me even if i am no family guy myself, at least i do not hate on anyone and i will be there is someone need help, even if its people i have not seen in decades.
Mind you before the argument when my mother was living near to many of her siblings, well she got plenty og visits, and requests for her paying god know what from mopeds and glasses to caravans.