None of them need it before housing. Housing is the foundational aspect that empowers and acts as the conduit to recovery. As an example, I have many clients who go into detox programs, but once they finish their medical-grade detox, they have nowhere safe to go. How do you remain safe and sober in an environment that made you start using substances in the first place?
We have to start with housing, because if someone leaves detox, they need a safe, sober place to stay. Housing is always the first step and the conduit to all of the other recovery-based solutions that we need.