I think the church is missing a bet here. Pornography is the end result as much as the cause of problems. And the church could help alleviate this to a great extent.
Much of the western world has a serious problem of segregating its boys and girls, so they have minimal chaperoned contact with each other until they turn 18, at which point they are supposed to spontaneously date, fall in love, get married and have children.
As anyone who raises dogs will tell you, if you keep a dog separated from other dogs, it will still want to mate, but it will see other dogs as “the enemy”. And children are not that different.
This, as much as anything else, is why pornography is so huge in the world. Adolescents are strongly compelled to want to mate, but have no experience or understanding of the other gender. It is regarded as a major psychological breakthrough for an adolescent to even conclude that the other gender are “human”, not just objects.
Parents assume that children have this necessary gender socialization in schools or in church, but that does not happen, because the children are assigned so much to do that they do not have the time to interrelate.
So what could the church do?
Perhaps the easiest thing would be chaperoned, semi-formal dance classes. It would require a small degree of polite physical contact, and even if only one day a week, it would mean perhaps two hours of unbroken interaction with a particular individual of the opposite gender. And each week a different partner, in rotation.
But that is just a start. Eventually there could be several activities of a similar nature. And when it became time for them to date, marry, and have children, they would know what to look for in a spouse.
What? Where do you live, that segregates boys and girls? Saudi Arabia? I live in America, where boys and girls are together all day at school and then afterward at sports activities, shopping, eating out, movies, etc. And we do not expect them to fall in love and get married and have kids the minute they turn eighteen since usually they can't make enough money at 18 to support themselves, much less a family. Whatever are you talking about?