I think that is all unit bias and the idea of holding 1 of something is just a comfort that fiat provides, people will have to set used to having a fraction of a bitcoin or price things in sats. As satoshis increase in purchasing power, we may even need to fork in more decimal points to keep it practical to use mili satoshis and so it continues.

Owning 1 bitcoin is already more than most people can save in their lifetime around the developing world, and soon it will be too much for people in the developed world to own, they will get used to it the same way everyone else will

Owning a whole bitcoin will be like owning a building, very few will own it, but people will own parts of that building and it will all hold value