I chose other for these reasons:
If you are already on government welfare/assistance, you should not be allowed more than one child. Anything more would add strain to the already struggling system and it would be most likely harmful to the child because they couldn't be adequetly cared for.
In cases like the Octomom's, I think it's horribly wrong. No doctor should give fertility treatments and implatations to a woman who already has six kids. She obviously doesn't have a fertility problem. She took away time from that doctor that could have been used to help a woman (or couple) who had no children but desperately wanted one.
However, if you are in good financial standing there should be no reason you shouldn't be able to have as many kids as you want.
However, that being said. On a personal level, I think anything more than four kids (unless like, you had two and then had triplets or something, that can't be helped) is ridiculous. It's not for me. I think the Duggar's are people that don't deserve the attention they're getting. 18 (19?) kids is just waaaay too many. When you have so many kids that you (the parents) are delegating tasks of caring for a younger child to an older child instead of doing it yourself, that's just wrong. It's not showing love to your child. It's having another child show love to that child. It's wrong, to me.