Stupidity is an indiscriminate privilege of all human groups, irrespective of race, class, creed or level of education (including Nobel laureates). It is uniformly distributed according to a constant proportion.
It was reported in 1999 that Gypsy child in poverty stricken Romany shantytowns in Eastern European countries grows up in an environment that contains very little positive impulses. Its senses are not purposefully cultivated and their sensibility is so low, because perception is not connected with practical activity. The level of psychomotorics does not match the age and is injured by retardation. Gypsy child does not draw or clip shapes at home, nor it does play with toys. These special features cause that special schools for underdeveloped children in these countries care mostly for Gypsy children that were misplaced there because of socially conditioned mental retardation. In Slovakia, the number of Gypsy children in such schools is higher than their number in general grammar schools.
Only two things are infinite, the universe and human stupidity, and I'm not sure about the former. (Albert Einstein).
How would the world function without "stupid people"? For without the problems they create, there would be nothing for the "non-stupid" people to do. Every action requires an equal and opposite reaction.