What theme or message about human nature and society is expressed through the tragic end of Romeo and Juliet?

There are a few themes that you might consider. I think the impulsiveness of youth certainly is a theme that still echoes today. The youthful characters are almost exclusively defined by their energy and impulsiveness – Meanwhile, the older characters all view the world in terms of politics and expediency and J only see their "love" for each other as a means to an end while not considering any peripheral consequences of their actions. R and are self-absorbed teenagers who bring about their own fate but they are little different to many teens today.