After 2032 sats will be the main unit and people will no longer speak in terms of whole bitcoins

When bitcoin first launched the only way to acquire it was to mine it so naturally people spoke in terms of their mining reward, i.e. "50 bitcoins"

The mining reward is currently 3.125 bitcoins and in 2028 it will be 1.56 bitcoins.

But in 2032 the block reward drops to 0.78125 bitcoins. At this point the unit narrative will shift as not even the mining reward will be denominated in whole bitcoins. The block reward wont be viewed of as 0.78125 bitcoins, the block reward will be viewed of as 78 million sats.

After 2032 even the block reward will be denominated in sats not whole coins which will propel the entire currency unit narrative to shift to sats.