Very few people are likely to have that sort of charger installed in their house. High speed charging makes sense though where it'll be heavily utilized, like

Very few people are likely to have that sort of charger installed in their house. High speed charging makes sense though where it'll be heavily utilized, like at charging stations along major highways. (I'm hoping eventually the highways will become the charging stations, probably with some kind of device that makes a physical connection to rails embedded in the road that supply power to moving vehicles, kind of like a big slot car. For that application, fast-charging batteries are great because it means you only have to electrify short sections of road at regular intervals, not the whole thing.)