There is a famous french comedian who said "when you think about it, the only thing needed for this not to be sold... is that nobody buys it".

That pretty much sums up the solution to most problems of the human race. You know that killing thing ? What if we stopped doing it ? You know that unhealthy habit ? That immoral product ? Etc.

Disciplining yourself to not eat too much chocolate is hard enough. So collectively asking all humans to agree on one particular point of discipline....