Comment by Zanni
5 hours ago
The thing that makes harming others wrong is the lack of consent. That allows us to avoid the sticky question of what is "harm." For self-harm, consent implied, what is "harm?" Exercise with a risk of injury? Failing to exercise, with a risk of decreased life span? Failing to optimize your exercise routine? Surgery? Drinking alcohol? Dating the wrong person?
Most of your examples would not be considered harm for another...