[Tervuren]

Sacrifice is an intentional choice to see something of value to you be forever lost or destroyed.
The only reason people make sacrifices is their own perception that the choice will yield something of more value, either immediate, or later.
Shared sacrifice requires something held in value by all those that share in the sacrifice, and it requires something that belongs to all those who hold it in value, further, it requires the loss of value by all due to a choice made by each to release the loss of value.

There is a difference between shared loss, and shared sacrifice.
Shared sacrifice as a country would be exceedingly rare throughout history, shared loss is another matter.
If anything, smartphones increase the chances for shared loss as they increase the ability to find others willing to undergo the same loss you are.

If you want to increase shared sacrifice you must decrease shared obligation.