Well, perhaps not here, but you're falling into the trap of thinking that because you know something, you know everything and that your experience is representative. It's not.
The reasons behind depression are complex, varied and personal. For some people, it is a chemical imbalance - it's a physiological issue. For some, it's caused by social issues, sometimes they have control of that and can work they way to a better place and sometimes that's not possible.
Depending on what they cause is, depends what treatment is most effective. Some people find SSRIs help, some find that counselling helps, some will struggle through it for the rest of their life. To have effective and comprehensive MH care, you need to be willing to tackle these diverse causes with holistic treatments - and that is expensive.
+1
The waiting times are atrocious. South London wait times for children alone is 1 year! At such a critical age when thy are at school and developing.
They now reply with a standardised letter they send when you refer to psychiatry mentioning their lack of resources and apologise for the wait.