unit321:
Maybe that is because most of the time all of the securing is being done by volunteers. (At least in my town). I know that most libraries in small towns have a very limited budget to work with so they don't have a lot to spend on security. I am sure if you find the security of your library below your standards that if you asked they may be more than happy to let you help secure it. It would do them a service and it would be a good learning experience for you also.