They absolutely shouldn't try to get pregnant, they'll be incapable of looking after the child.
People with Down syndrome aren't all the same. The highest measured IQ of a person with Down syndrome in a scientific study was 117:
https://pmc.ncbi.nlm.nih.gov/articles/PMC3707311/
Having said that, men with Down syndrome are generally infertile anyway.
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People with Down syndrome aren't all the same. The highest measured IQ of a person with Down syndrome in a scientific study was 117:
https://pmc.ncbi.nlm.nih.gov/articles/PMC3707311/
Having said that, men with Down syndrome are generally infertile anyway.