Cryptocurrencies are decentralized. Language concerning them is too.
Since 1 BCH is worth over $300 and Bitcoin Cash claims to be a cryptocurrency meant for spending, a full bitcoin is too large to speak about a cup of coffee (0.016 BCH), or even a PS4 (0.986 BCH).
If instead we decided on a new unit, one much smaller than the bitcoin, it would be easier for humans to reason about their savings. That PS4 is $299, but it is also 986,179 bits. The coffee is only 16,479 bits.
Grumbles within the community make it seem we're moving towards a new & more graspable unit of account, but what it will be called is still in the air. Some like bits, it's been a consideration for years now. Some like cash, to seperate from Bitcoin (BTC) & highlight Bitcoin Cash as digital cash. I find using cash as a unit makes for confusing conversation when someone asks you to pay in cash.
Did you mean Bitcoin Cash or US Dollars?