John Theune writes:

Because

Because why?

One of the advantages of a democracy is that nobody is indispensable, and if
someone high in the government is lost, the government continues to operate
normally. If this ceases to be true, you no longer have a democracy.

High-ranking officials often have heavy security because (1) they are cowards;
(2) it makes them seem more important; or (3) they like the special treatment
(essentially just a power play). Security teams often cannot prevent bad
things, anyway, and at the same time, the world will continue to turn if a
politician in a democracy is lost, no matter how nominally important he may
be.

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