People will start talking about water when a water shortage starts impacting their day to day life. For the average western world resident, water is not a problem, yet. But I bet you people in Tehran cares a fuckton about their water running out.

The same with politics. When politicians keep their hands off the society, no one feels pressed to talk about politics. When an authoritarian regime compromises a widely used open source software to conduct espionage, of course people will start talking about politics.