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davesparks
you might not think its an emergency but tell that to a young family who have no way to cook food .and as for a leaking washing machine a large proportion have the isolating valve behind the machine and how many people can move a machine to isolate it
That is still not an emergency, it is inconvenient but they can eat cold meals for a little while. Why does it matter if they are young? People of any age will be inconvenienced by not having a cooker for a while.
Most people should be capable of moving a machine to isolate it, they can turn off the main stopcock whilst they work out how to move the machine.
Yes some people can't move a machine to do this, but with the probability of the fault occurring, then the probability of it occurring in a house where the occupants can't deal with it, or becomes a rarer and rarer occurrence.