Why do most cars w/ ESC (electronic stability control) have a button to turn it off?

It seems like an oxymoron to have a vehicle equipped with this system being turned off.Why do most cars w/ ESC (electronic stability control) have a button to turn it off?
For normal drivers: to be able to drive on extremely slippery surfaces like ice and snow. ESP systems apply the brakes to prevent cars from sliding, and wheels from spinning, so in some extreme conditions the cars would refuse to drive with the ESP on.





For racing drivers ('don't do this at home'): As the brakes are applied while sliding, the car is slowed down by the ESP system in very fast turning. Expert race drivers will be able to drive faster through turns w/o ESP (if they can keep the car controlled)





My advice (I develop suspension for many European car brands): never drive w/o ESP unless the car refuses to drive because roads are too slippery, and then drive VERY slowlyWhy do most cars w/ ESC (electronic stability control) have a button to turn it off?
This is because sometimes in extensive condition like when youre driving fast and stop immediately due to an obstacle ur car will not stop.


So when it's un necessary it's turned off
ESC or ESP as Mercedes refers to it can be turned off to allow the enthusiastic driver to enjoy a bit of tail slide or harder acceleration out of a corner. Most ESC programmes are quite aggressive and apply the brakes on selected wheels and or back off the throttle at the slightest chance of a wheel spinning or loosing traction so turning it off in dry conditions on good roads is usual if driving something sporty.