I am assuming that Generalised Anxiety Disorder is prevalent, unfortunately regardless of your socio-economic status. GAD is prevalent in 4% of those who can afford the treatment too.
It may be some time for Institutions like Medicare to catch up (subsidise) with the majority of people that have unmet needs.
You may well be correct that it might be a niche initially, but I have confidence that once our GAD treatment becomes FDA-approved then we could leverage the Governments against their current Mental Health Expenditure by providing a service that is a remedy for sufferers and not a Band-aid as it Prescribes (medications) currently. PBS is a possibility too.
