I know this will probably draw lots of criticism, but I think birth should be much more selective too. From a medical point of view. If they can optimize embryos with gene modifications so that people could be disease free, i.e. guard them against cancers, create good immune systems etc. Just imagine the savings in medicine?
Have you seen the movie Gattica?
The controls would have to be really tight, because people would want to modify their children's looks and athletic ability and intelligence and personality. If nothing else this would reduce the divresity in the human population, and that would be a bad thing. But the idea of preventing cancer or just hereditary diseases sounds great.