Law enforcement tracking everyone can have serious and unintended consequences in away that a SaaS tracking visits are unlikely to have.

An extreme case is on the other side, is to compare simple site limited tracking to a coffee shop being able to see who enters the door. Why should they track how I look and the way I'm dressed? Does it make service harder if you have to work blindfolded? Though luck, my privacy is more important than your wish to provide your customers with good service.