I guess this sounds very extremist, and maybe it is, but should society allow mentally handicapped people to have children? Mentally handicapped would mean an IQ so low that mature behaviour is impossible (so in adulthood these persons function like 6 or 8 year old children).
Recently I read a newspaper article about children 'raised' by mentally handicapped parents. Most of those children inherit the handicap, but some are born with a normal functioning body. Of the last group a couple were interviewed: in many cases they hadn't learned normal human behaviour and speech until leaving the home, or they had suffered from malnutrition and other forms of neglect. Instead of being taken care of by their parents, they had to take care of their own parents instead (if other family members didn't do this).
Is getting children such an unalianable right that situations as these can't be prevented? Or is the sterilisation of severely mentally incapacitated people accaptable?