Its a nice article and a positive one.
Unfortuna another documentary about people with Down Syndrome were more heartbreaking. A young girl got told from a doctor that not only shouldn't she get to try pregnant, the chance is very low already and that she has other medical concerns she needs to handle.
Not something she could handle without a proper care taker though.
To add a factoid without expressing an opinion: women with Down syndrome are often fertile while men typically are not. The odds of the offspring of a female with trisomy 21 having the same trisomy are 50% theoretically, and between 33-40% in practice due to trisomy embryos having a higher rate of spontaneous miscarriage.
They absolutely shouldn't try to get pregnant, they'll be incapable of looking after the child.