I think a lot of people here are judging when they have no experience. They have no idea what it is to be faced with possibly having a child for life. Never grows up and leaves. Never has a family of their own. Always need you to be there. That is a hard life. It ends marriages. It causes depression and suicides. It is no easy thing. Now we don't really know how severe this is but we do know that any real level of downs means a life of supervised care at a minimum. With all the financial, emotional and physical costs that come with it. Not for me to judge and I would suggest not for you to judge either.
When my mother was pregnant, they told her I had a 85% chance of not surviving more then a year, due to some lung condition. And if I survived, I had a 85% chance of being handicapped. The doctors asked my parents if they wanted to abort. I did spend the first few months in the NICU, but ended up having a near perfect score on the ACTs, and received multiple division 1 scholarships to play soccer, which I started 3 of my 4 years.
I wonder how many of these kids that were aborted due to their parents being told would they would have some sort of mental handicap, would have ended up living a normal life anyhow. Guess we'll never know.