The same reason we don't measure everything in nanometers, because units are a tool and we should use the one that makes the most sense at the time. Bits shouldn't replace Sats but it is a unit just as sats are. So when we have a number like you said 9180 sats, we can reduce that to 91.80 bits or you could say 91bits and 80 sats. Which makes it more readable because there is less clutter around it.
Discussion
Makes perfect sense to me but we don’t seem to agree on said Bitcoin units. This should be standardized once and for all.
I'm pro bits and sats they work absolutely perfectly together. Bits will be the medium unit, sats will be the small unit and BTC will be the big boy unit. Small, medium large. That's my view. I also think that regardless, people should be able to display information at very least to themselves in whatever format or unit they like.
