What's wrong with having a kid who has Down's Syndrome anyway?
I know plenty of happy parents who have Down's Syndrome children and they're happy as hell with it. Just because your kid is different doesn't mean it's wrong to have them.
BECAUSE THEY NEVER LEEEEEEEAAAAAAAVVVEEEEEE!!!
i'm exaggerating, just a little....
but i don't know many people who have children and intend for them to live with them the rest of their lives. ESPECIALLY if the children end up needing physical help. parents get used to helping, sure, and don't mind it...but LIVES CONTINUE. people grow -- the children become adults. they get heavier to move. they get stronger when they resist. and as they get stronger, the parents get OLDER. no matter how a parent loves their child and would do anything for them, science and time make it gradually harder to physically do.
in addition, i think most people when deciding to have a family thinks, i'll commit to this, do my best, and they will leave me. parents expect hands-on, in-the-home parenting to only be a PART of their lives. they have individual needs. they have a spouse they want to be with. most parents don't expect children to become permanent fixtures in their homes and responsibilities.
i know my wish is to commit to being the best parent i can be, understand and dedicate a couple of decades or so to children who need lots of my time, teachings, guidance, etc. if i've done my "job" as a parent, eventually my children will be able to leave my nest full, readied, strong, independent individuals who can make a wholesome, good, positive investment into the world. if i do my job correctly, one day they will decide when it's time to walk out that door and never look back -- not because they don't WANT to....because they don't NEED to. they will be ready to begin their own lives, unaccompanied.
natural life has natural stages. we come in attached, we grow, we develop, we detach, we stand alone, we make choices, we form bonds, we leave alone. this is the natural rhythm, and therefore the expected one. doesn't mean it HAPPENS this way...but it's kind of assumed that it probably will.