You can't stop people conceiving and having their own kids provided they look after them well thats fine, but to be finding homes for children that are not with their natural parents surely we should look for the BEST possible.
Some of these arugents are
And just because many many parents are poor role models does not mean we should deliberately put children with these types, the best possible is what should be looked for in all aspects. Hence my previous post that smokers should not be allow to adopt IMO.