Only an idiot would think that 1
BTC is as low as it can be divided and bought/sold.
Do folks think 1$ is the smallest unit? Or 1 oz is the smallest unit for gold? No. All can be divided down to much smaller units. They are just the base units. It's called using decimals...
You want smaller units, then just use mBTC or µBTC. For a perfect example see,
https://bitcoinity.org/markets/coinbase/USDExactly. It takes all of 5 seconds for someone to learn that any amount of Bitcoin can be bought, not just whole Bitcoins. And it takes another 5 seconds for people to learn that the smallest unit of Bitcoin is a Sat which is 100millionth of a Bitcoin.
Absolutely no reason to change anything about the format of Bitcoin units.
And anyone is free to think of bitcoin in either of the main two units or any sub-unit of those - bitcoins, Sats, milli-bitcoins, micro-bitcoins, kilo-Sats, or whatever denomination makes the most sense for them. Nothing needs to change for that to occur. Just as the dollar doesn't need to change it's base unit for people to think of their money in terms of thousands of dollars, you just stick a 'k' after the number of thousands.
Bitcoin doesn't ever need to be priced in something that isn't a bitcoin, it doesn't ever need a new format for units. It is very easy to learn the basic units of Sats and bitcoins. Anyone who doesn't know these basic facts that just means they have literally never spent even one minute learning about Bitcoin.
These hairbrained change-the-units ideas are a problem that doesn't exist and are made by people just looking to create confusion in Bitcoin.