The mayor of New York City is not banning the sale of soda. Nor is he telling consumers that they can't drink soda. Rather, he is calling attention to how much should be considered a reasonable amount to drink at a time.
This law is a gesture to give our children a chance at freedom, the freedom to move their bodies run, play and jump instead of being jailed in a body inhibited by obesity. It's our responsibility to protect our kids.