The bad news: there is some real potential for escalation due to the suspension of the Indus Waters Treaty https://economictimes.indiatimes.com/news/india/indias-water... https://en.wikipedia.org/wiki/Indus_Waters_Treaty Wasn't there something in the intro of "Mad Max fury road" about water wars?
The end of Lolita (old guy on a road, frustrated, goes off path) fits with the Furiosa taking a detour.
The roles are reversed. The young girl leaves in triumph (opposed to: the old guy leaves in frustration) and the old guy goes after her (opposed to: the young girl doesn't care about him leaving).
It could be just the skeleton of the story though.
Water is unobtanium of their scenic universe. In that movie perspective, it's related to healthy reproduction (healthy babies!), most likely cultural and not genetic.
As any work of art, it is subject to many interpretations. Not everything is a cue. But some cues exist in fact. Contrary to the meme swarm, you can't turn those ideas so quickly into what you want, otherwise it fails to connect to a sense of cultural continuity.