I promise you I did not know this Synod document was about to be published when I began answering your question, Is Christianity Dead? But there are good ideas in there to help address your concerns. I move on to the short paragraph entitled Going Out. I think we have to realise that when Pope Francis is talking about vocations he is by no meaning just the priesthood and religious life.
Pastoral vocational care, in this sense, means to accept the invitation of Pope Francis: “going out”, primarily, by abandoning the rigid attitudes which make the proclamation of the joy of the Gospel less credible; “going out”, leaving behind a framework which makes people feel hemmed-in; and “going out”, by giving up a way of acting as Church which at times is out-dated. “Going out” is also a sign of inner freedom from routine activities and concerns, so that young people can be leading characters in their own lives. The young will find the Church more attractive, when they see that their unique contribution is welcomed by the Christian community.
The church porch is important; each one is a door of mercy where people, old and young, should feel welcome to come in and go out freely. If that is not the case, how can it be remedied? What ways of acting do we need to give up? Pope Francis does not promise it will not be demanding.