Yes there is always that risk I agree and the cable gets checked and replaced regularly.
Cables (even newly installed ones) can fail, so can the point they are anchored to, so can the fixings, so can the lever or the brake shoes or the brake shoe fixings or the cable housing - maybe very very rarely, maybe only once in half a decade or maybe just once in a decade ?
If this does happen you could - depending on the circumstances - be very badly injured, paralysed or worse you may injure someone else.
Your reasoning won't go down too well with the father of the 6 year old girl when you have just collapsed her eye socket and fractured her jaw as you both wait for the police and ambulance - regardless of your own injuries, additionally with only one brake on your bike (Illegal in the UK) you are leaving that scene in the police van and not the ambulance.
Cables (even newly installed ones) can fail, so can the point they are anchored to, so can the fixings, so can the lever or the brake shoes or the brake shoe fixings or the cable housing - maybe very very rarely, maybe only once in half a decade or maybe just once in a decade ?
If this does happen you could - depending on the circumstances - be very badly injured, paralysed or worse you may injure someone else.
Your reasoning won't go down too well with the father of the 6 year old girl when you have just collapsed her eye socket and fractured her jaw as you both wait for the police and ambulance - regardless of your own injuries, additionally with only one brake on your bike (Illegal in the UK) you are leaving that scene in the police van and not the ambulance.