请教老师关于where的问题。

1、这里where引导的都是地点状语从句吗？where=in the place/situation？

2、这两个where引导的从句，都可以放到句尾吗？
3、句首的where表达让步或者条件，请问老师表达让步或条件是根据句子意思还是其他什么标准判断呢？

Where the economy is thriving, the population grows rapidly.  
Where people were concerned, his threshold of boredom was low.