Out into the wild

Out into the wild.  I am so worried about a young friend who wants to venture out into the world , doing good deeds, owning nothing, living off the land. I mentioned packing his warm clothes because winter is coming.  He hadn't thought about that.  He has good intentions but I fear he is out of reality , heading for homelessness.  Religion is his focus.  He feels God will guide him.  He has three weeks to exit his present home.  I want to suggest therapy but fear I will insult him.  Any suggestions dear readers?