It's great saying it is the son's responsibility to engage with treatment when no treatment is being offered!
ITA. DD2 has been diagnosed with EUPD/Dependent personality disorder - and the EUPD bit is certainly due to witnessing trauma; as the whole family have. DD1 has a medical condition, well known for causing major episodes of depression, grief, anxiety, post traumatic stress and post traumatic disorder in the family.
She was under her local mental health trust. HCPs told me she needed psychotherapy - but none was available in the trust, and they advised me to complain. The attitude in her trust was that EUPD was difficult to treat, took a long time, so was not cost effective and the priority was treating drug addicts. The only treatments they offered her were countless assessments (which didn't lead anywhere), then anti-depressants, mood stabilisers and a group on "Tips to avoid depression" - none of which was much use, when the problem was having witnessed trauma countless times! Yet, if she refused the treatments, she was accused of not engaging with services.
Why should people with mental health problems be bullied into taking medications that don't work (imo, the suicidal ideation started every time, she was put on anti-depressants), when people who go to the GPs with pneumonia, would not be criticised for refusing to take HRT for it?
She moved back home, where she was eventually offered DBT. They told her had she sat at home and quietly taken overdoses, she wouldn't have been offered treatment, because it wouldn't have bothered anybody except her and the family! She was offered treatment because most of her suicidal behaviour happened around railway lines and stations - which took up police time, emergency stops of trains, trips in ambulances to S 136 suites, crisis team involvement; all of which cost the state money. A year of individual and group DBT improved her considerably, until she no longer met the diagnosis.