The problem is, most of the current generation is well aware they haven’t lived good lives.
Not to mention, the conundrum of living longer implies a chance for an accumulation of more misdeeds.
Personally, the most likely scenario is almost everyone becomes aware there is likely nothing afterwards at some point. Religion is more there like the bumpers for kids cosmic bowling, ensuring zero gutter balls. Keeping you playing, until the day you’re old enough to remove them and pay taxes, revealing life is a subscription, and childhood was a free trial all along.