Why is government paternalism wrong?

Jun 2017
I guess you can make the argument that the majority of people are too stupid to rule themselves, why is paternalism wrong, considering that the average IQ in rich countries is only 100 or so, barely enough to graduate from a lousy community college, and in poor countries like in Indonesia, the average IQ is even lower, like 85, or the average person there is mentally retarded going by the old psychometric standards.
It isn't.