I was pondering this question in Caffe Nero the other day with a young leader from our church family. The answer we came to was, teach them of Christ so that they will give up their lives like him by being husbands, and be able to be Christian fathers who would instruct their children in the gospel (as in Ephesians)- even if they're not yet married or parents.
Could a young man have a better ambition than obsession with Christ outworking in other-centred life and clarity of gospel-centred doctrine? Could we see a generation of men grow up who truly consider the gospel to be the central focus of their lives? Could we see young men who take responsibility for the domain God gives them and pursue life in Christ?