There’s no comparing charging an electric car with charging most other electrical appliances that require daily socket-based charging (like a smartphone, which charges at about 0.002% of an electric car’s charging power at a domestic socket). Even larger domestic loads (e.g. a 1.5 kW hair dryer or vacuum cleaner) have lower consumption rates compared to an electric car’s charging power. One particularly noteworthy fact is that a hair dryer or vacuum cleaner only draws power from the socket at full load for a few minutes, whereas an electric car would be plugged in and charging for several hours.
The cables and especially junctions in distribution boxes turn warm to very hot the longer the electricity is flowing, running the risk of a cable fire breaking out. The risk becomes even clearer if you connect the electric car to an older socket or domestic installation. In the best-case scenario, the fuse will fail; otherwise, the socket or the cable will melt.