The point I am trying to make here, is that of these large appliances the dryer would be the only steady 2.4 Kw load, the dishwasher & washing m/c only draw this amount during the heat up cycles. Kettles & toasters only take minutes.
I do agree that loading should be better distributed within ring mains. On new houses I tend to put the utility room (washer & dryer) on the ground floor ring & kitchen with dishwasher on a dedicated kitchen ring main.
When I lived in Oz, the kitchen was served by 1 16A radial circuit, the following appliances were connected:
kettle, microwave with grill, fridge-freezer, garbage disposal, cooker hood, dishwasher, toaster, the breaker NEVER tripped. I think there was also a socket in another part of the house connected to this circuit.
Another 16A radial circuit supplied all other sockets in the house including the laundry.