Good morning @Jillie
In response to your post seeking advice in gaining community access for your son, there are various drop in centers where he can go in and talk amongst peers who are in the same situation like himself. If you are in Northern Territory he can come to Miplace at the MIFANT but other states there are various organisations: - Sydney - One door mental health, SA - Skylight, Wellways - Melbourne and Tasmania, MIFWA - perth, MIFA - Queensland.
These organisations can assist you and your son by creating support plans that suits current situation. Also as this is a community that will always have open doors for both you and your son.
Lots of blessing for both you, your family and your son.