A cop walking up to a car with a hand on his holstered gun is only dangerous to the occupants if they attempt to injure the cop.
I think history has shown this to not exactly be true. Police officers have a frightening number of accidental discharges for people who are supposed to be firearms proficient.
And policing is far more dangerous than you'll admit to.
Policing is a lot more dangerous than my job.
That being said - it doesn't even fall into the top 20 most dangerous jobs, and is less dangerous than farming, logging, commercial fishing, mining, construction, driving a taxi, and quite a number of other things.
...and the number one killer of cops is car accidents.
Cops get hurt and die every day doing things as routine as checking on a suspicious vehicle that got called in by the neighbors. Policing is a necessity, it's dangerous, and caution is necessary to ensure safety.
Absolutely - and reasonable caution which improves safety without reducing public safety should be engaged in.