What do you believe is a necessary evil?

Question

What do you believe is a necessary evil?

Answer 1

Man.

Answer 2

Money. Have too little of it and one will suffer from lacking, have too much of it and one will suffer from excess.

Answer 3

Death. We'd be even more over-populated without it.

Answer 4

Imperfections..... they make life worth exploring..... if everything were to be perfect, life would be a dead bore!!

If one argues that imperfection is no evil, which is a plausible argument tuned to our reality, then I would say it is restrictions to individual freedom which no one likes, but can't escape for the sake of one's own good.