1.) I'm pro-physical discipline. I believe children don't understand the social and emotional repercussions of their actions and that pain is the quickest but also most directly effective way of curbing any socially-unwanted behavior. Of course, there needs to be regulation of this method. Also, there needs to be a strong connection with the parents. If the child does not respect the parent(s) then they will not respect the method of discipline. But that goes for any form of punishment. I was hit as a child and had a strong relationship with my parents. When they hit me I felt guilt more often than pain. This strike to the child should be for the shock value, not the pain value. In my early childhood I got the wooden spoon, which was very painful. I know quite a few other people my age that received similar treatment. However, I believe that that is a bit radical. Perhaps a few times will do the trick for the right "crimes." As for smacking the cheek (either one), it was more of a jolt of unwanted contact coming from someone who I looked to provide me comfort and love. When an opposite result was provided due to my inappropriate behavior, I realized I was doing something wrong without being taken aside and given a lecture. Often I knew that the behavior was inappropriate and unacceptable and acted against my sense of self-discipline. Perhaps I was in a fit of hightened emotions and not behaving properly because of it. Regardless of the cause, it brought me to the conclusion that I was behaving inappropriately and to reconsider my actions. 
These punishments don't work when the child lacks empathy for others or respect for their parents. So the effectiveness of this punishment, I believe, directly correlates to the parenting method as well as the psychology of the child.

2.) Inherently dangerous when traveling to a possibly illegitimate doctor who conducts possibly unsafe procedures. I don't know whether to be apathetic to their ignorance over the danger or impressed with their initiative to attain what they want. Overall, I'm indifferent upon this topic and believe people will seek out what they will when they are dissatisfied with their current state of being. It is unethical for the doctors to not disclose all possible outcomes of any and all treatments they provide. However, the individual seeking treatment might also not fully realize what these consequences may fully entail and might be so desperate as to ignore them. If that is the case, then I hold no sympathy. I also don't believe it to be the country's place to place a cap on human reproduction. If they want to bury themselves in their own people, so be it. 
To label "ethical or unethical" upon this would be counter-productive and has too many layers with which to do so effectively. Someone wishing to bear children through any means isn't inherently "unethical," but certainly brings about unethical behaviors, however ignorant.

Overall, it's not entirely productive to discuss the ethics of these topics without both sides being open to discussion. I understand that this is for a debate and that each side shall have their opposing yet (hopefully) legitimate proofs. It's also difficult for a pro/con side to actually take the consideration of the other when forced/conditioned to see only one side. I wish you luck on your debates.