For manyyyyy of these people there simply is no option to conveniently fast charge their electric vehile at home. No renter will want to invest in a pricy wallbox at a property that they don't own - even if the landlord would allow such a wallbox to be installed (most don't want any modifications to their building). And for the apartment/unit owners, a german court has decided that all the other unit owners must agree to such a wallbox being installed, so thats another obstacle.