VIP visits

The VIPs of our country cause trouble wherever n whenever they travel in and out of the country. The President, when he visited India, did not disturbed the traffic, however, during is return the whole airport- Baneshwor area was disturbed. The people traveling during that time had to wait until the VIP passed and reached SAFELY to his destination.These are the people elected by the people,for the people to solve their problems and create an easy environment for them but all they cause is trouble. Why do they have to so many security guards that could guard more than 20 people, for one or two person? Is there so much threat to their life? I know the VIPs has to deal with death threats but it doesn't mean they have to walk with the whole battalion. Cant they just visit and return wherever they like without causing any hype and problems to the people? They are there to serve people not to trouble them but they usually end up doing the exact opposite.