Not just the government. It shouldn't be possible for any random stalker to find someone's daily movements.
How is that achievable? PIs can legally do it. Random people can keep tabs on you and exchange gossip. It's the sudden scale and low cost that doesn't sit well with freedom to not be tracked in public 24/7 we took for granted.
They're also one and the same generally-- at least if the stalker has money or the right friends most kinds of law enforcement access means stalker access. It's not unheard of for an officer themselves to be the stalker, and there are so many people that work in law enforcement that bribing, impersonating, or persuading your way to access is not that big a deal. Not to mention that enabled stalkers can just file a federal lawsuit and issue subpoena for records.
The only safe thing is for the records to never exist in the first place.