[Uriko]

1: Do kids have the right to commit suicide for such problems when we have people being raped, abused, dieing of starvation, or have some sort of lethal disease who still strive to survive?
yeah. because, to put it simply, people have every right to do whatever they want with their lives.

2: Do adults really have the right to be depressed for long periods of time or (even at all) over such problems, when we have people being raped, abused, dieing of starvation, or have some sort of lethal disease who still strive to survive?
the origin of depression can be genetic, pharmacologic, endocrinal, etc.
so it's like asking if people with down syndrome have the right to be mentally challenged when we have people with IQs over 150. or asking if someone taking ferrous sulfate have the right to be constipated.