In Indiana all motorcycle riders must war eye protection. The laws comes from the idea that wind can blind people while they ride and it can cause them to lose control or be unable to properly see traffic. So it endangers others, and not only themselves.
What is living donation? Living donation takes place when a living person donates an organ (or part of an organ) for transplantation to another person. The living donor can be a family member, such as a parent, child, brother or sister (living related donation). Living donation can also come from someone who is emotionally related to the recipient, such as a good friend, spouse or an in-law (living unrelated donation). In some cases, living donation may even be from a stranger, which is called nondirected donation. (more) Interesting point you make that some rights are inalienable and that people may be prevented from contracting those rights away.
Prostitution could be legal. But I don't really like prostitution. It is not the kind of men a society need. It need family mean and leaders. Men that take care of their household and reproduce. I am not agree with the 5, it's up to everybody to create a culture.
And that are doing. Labor forces are a violation of your rights. And about prostitution I am against it, but in the meanwhile if someone to have sex for money this person should be able to do that. But I would ban the prostitutes work for someone else. Prostitutes should be entitled to work only for themselves and have a bill like a contract for every work relation that they have.