I'd say we should aim for the 50% of male population that cannot get laid. Sex should be a scarce rare occasion that people should pretty much take for lost since the get to go. That way they'd get less frustrated.
To reach this goal we must outlaw music and fiction about love and mating, every other topic like constructing pieces of machinery and teaching parrots how to talk should take its place. There should be tons of female and male interaction, but any kind of sexual advance should weird out characters and finally everyone should always agree that being just friends is better.
We should also get better sex education and a better establishment for prostitution, to aid deviants that are still victims of their biology. It'd be considered a handicap labelled sexual deviant and they'd have an assigned prostitute and a therapists that would eventually diminsh their need for sex.