It's been normalized to offload things to the recipients, because it reduces cost. Be it self-checkout, be it governments and large corporate entities doing the absolute minimum and asking you to jump through endless hoops to achieve something.
We're shaving off costs everywhere, without eliminating the need to do that work. And so it travels down to the leaf nodes, to individuals. Who cares, quarterly results are up, OpEx is down, good times.
Tech has enabled some of these things, but ultimately it's the fetishization of Taylorism that got us here. If you can't measure it, it's not worth doing, and not doing it saves money, which you can measure.
This has now spread all the ways to individuals. The commons, always a resource in a precarious position, is now the place for everybody to proudly defecate on. Throwing away litter, listening to music without headphones, rudely shouldering people away - all of it is accepted, because heaven forbid the individual sacrifices for the group. It is, after all, not a thing that has positive impact for themselves.
I don't know what will break us out of it, but yes, caring is missing because we've eliminated non-egocentric things from the rewards function we think we should apply.