I'm curious... What did you do before phones were being made with water resistance? Just stay in the house or something..? Would you not carry technology outside now if that feature had never been introduced..?
An slightly odd analogy. Technology moves on. What was once new and unique goes on to become the norm, a part of general culture. Society adjusts incrementally until the next new thing comes along and is accepted. And so on.
What did we do before electric windows in cars, for example? Well, we had perfectly serviceable window winders but few people today would be happy to go back to manually winding down car windows, not least because electric windows have become so much part of the basic driving experience. Same with paper maps. Sure, I still have paper maps in my car and can navigate with an analogue compass, but I'd much rather use GPS-enabled phone or computer maps, and my habits along with the entire digital economy have adapted to that new way of navigating. Same with LTE... phones would still function fine with 3G, but is that something we'd really want to have to deal with now the world operates at LTE speeds?
As far as water resistance goes, it was a pretty obvious addition once phones became so much part of our lives and carried everywhere. I've lost track of the number of friends who have lost phones (mainly iPhones) to toilets, puddles and even swimming pools. Ten years ago before the popularity of social media, phones generally lived in bags, to be fished out when they were heard ringing or you needed to call a cab. Water resistance was not something anyone worried about. Now they live in pockets and hands all the time for instant access (including while using the toilet... go figure), so water resistance has become a pretty invaluable feature. Almost as invaluable as Gorilla Glass. I'd argue that water resistance was a feature that met a need... a reflection of how phone use patterns have evolved in the Facebook, Instagram and Snapchat era.
So, yes, I'm disappointed that the Pixel is not IP-68 rated. I will survive (and hopefully the phone, will, too) but I will certainly have to change a few of my habits having previously had an IP-68 rated Sony phone. And if those habits happened to include being outside in inclement weather a lot -- something my Sony would have handled fine -- then, no, I probably would not have bought a Pixel because I would prefer not to have to start scuttling for cover like in the olden days when the skies opened!