Yeah but most people, including me, might think that their way of live is the right one and changing it would be utterly stupid.
For example, I don’t think it's necessary that everybody has to be vegan. Then there follows another argument and you just might think you already had the exact same discussion at least twice without changing anything
When we don't want to end, where all the calculations from the scientists end, we've to change.
A big one would to actually start to enjoy making the world better for the next generations, not only for ourself. Of course we shouldn't get rid of all pleasures, but maybe we could live with slightly smaller soccer world cups and aim for better global education