Therapists just play the role close family fulfill in most of East and South Asia. That scales very well but requires a societal monoculture that I’m not sure the west is capable of.
Mental health is terrible in east asia (at least in Korea), where mental health issues are highly stigmatized, mental healthcare is not covered under insurance (it's all in your head), familial and cultural narcissism is rife, the suicide rates are staggeringly high (especially among children and the elderly), and highly disordered behaviour (drug abuse, eating disorders) are considered as part of the culture, so I'm not sure these are good examples?
No they don’t. East and South Asian family relationships can be quite fraught. People don’t talk about their feelings. Parents put tremendous pressure on their children to study in school. Then they pressure them to quickly get married and have kids right after school. I have met plenty of people from both India and China who have expressed a lot of alienation from their families.
Tactically not talking about your feelings is a good thing. Nothing coming out of psychology has been replicated or validated i.e. a bunch of invalidated opinions. The most important thing is to prevent alienation and isolation and Asia does that better than anyone else.