I believe that eventually people will come to realization that 1 whole Bitcoin is too much, but the ubiquitous unit used will be satoshis.
Going to the grocery store "that will be 585 sats please" will sound a lot easier to use than "that will be 0.00000585 btc please".
As an individual satoshi becomes more valuable, people will gravitate towards the units of sats instead of bitcoins.
I attribute this to the assumption that people would once use gold bars as the unit until it got too valuable and thus was reduced to coins and then eventually individual ounces became a unit for accounting for gold.
It could be a shift in narrative and people aren't used to a deflationary currency and the need to change the units of measurements on money that gets more valuable over time, however in some places they do have to change the units in the other direction, especially during periods of hyper-inflation.