Your depiction of a person with downs is not representative of the majority.
I can’t say for 100% certain but I struggle to believe what you’re describing is more common than not. That strikes me as a level of support provided by the state that most people with ds - and their family - do not enjoy throughout the world.
This is absolutely common in New Zealand.
I think treating people with dignity, respect and part of the community is as important as state financial support.
Our government will also subsidise wages in certain industries for people with certain disabilities. So it’s common for people with intellectual disabilities to be working at supermarkets.
Remember the original context here: someone talked about what they experienced and then you came in questioning it saying how wonderful the support you see is, then said what they experienced is not the majority experience, when the reality is quite the opposite actually. The support you are seeing is what is actually uncommon worldwide. New Zealand is exceptional here.
It gets worse. People with Down’s syndrome face all kinds of health issues. *Half* are born with heart defects. They have higher risk of hearing loss, vision problems, sleep apnoea, thyroid disease, coeliac disease, digestive problems, epilepsy, infections and leukaemia. They also have elevated risk of dementia later in life.
This is a hellish existence which no one would wish on their worst enemy. It's hell for the sufferers and it's hell for the family.
That said, prospective parents usually don't make their decisions to abort or not to abort on an expected median outcome, but some of the more pessimistic-but-realistic scenarios.
It may be for a different country, both experiences are valid to hear. In my country as far as I know it doesn't happen like yours.