There's an interesting short documentary about the Metropolitan Police Special Escort Group: https://www.youtube.com/watch?v=w5TkSE_5GsE
I think this is a smaller problem.
http://www.thedrive.com/the-war-zone/4518/the-fascinating-an...
[1] http://www.goodreads.com/book/show/32330232-soldier-spy [2] http://www.bbc.co.uk/programmes/b085hbwn#play
And a parody of motorcade abuse in an African country - https://www.youtube.com/watch?v=SbDgJN-j-PM
Training. A good number of these police escorts are training senarios. Police need to train, but the use of force to detain members of the public during training is a step too far imho.
Some VIPs arent very vip in my book. After concerts downtown, in the traffic chaos, it is not unussual to see police escort performers to the airport or hotel. Taylor Swift doesnt qualify as vip imho.
Questionable destinations. Taking someone out to lunch doesnt need the police convoy. Send for take out. Dont block a bridge or manhandle me off my motorcycle just because a visiting vip feels like italian tonight. Let the food come to him.
From documentaries I've seen, they're on the bus and on the road before the applause is over. All the meet-and-greet is done before the concert.
Let me ask you something. Why do you insure your home? It's dispensable, and surely not as important as the World Trade Center, so why do you even bother? Because it's important to you, that's why. These high-status people, although meaningless to you as you sit at your keyboard in the presence of your monitor glow, are important to many people. Businesses, brands, even separate industries entirely all have a stake. Why wouldn't they protect that when their person or team of interest is minutes to hours after they've been in the spotlight? Co mon here...
These escorts are necessary and many, many people have collaborated for a reason to have them. What if someone stood up and suggested them unnecessary and a useless cost? Would they receive a large bonus from the money everyone will save? Or would they be laughed out of the room followed by a letter to clean out their desk by the end of the day?
If that causes downtown Vancouver traffic to be marginally slower from 6:00pm to 6:10pm and 9:00pm to 9:10pm on event night, sorry, you're off to the side shaking your fist.
Reserving it for the very top of human existence (and frankly, only of political interest) and anything under as unworthy and a waste of resources is... I have no words.
It's interesting to see how much direction they need to give to drivers - "Don't slow down here, keep driving"; "stop there until we've gone through".