Speeding is a contentious issue and for 99.99999999999% of the time you are just breaking the law. But it only takes that 0.00000000001% to knock down or kill a child. Being a child, you have to do their thinking for them sometimes.
I live in a small village with a 20mph past the village school. But as the road is a commute through it gets ignored by virtually everyone. Now if it was you in those circumstances and your child was knocked down, where would your argument be at that time, where would you like to string the speeding driver up to and what by?
I wish more cars came with the driver set speed limiters. I’ve had one on a couple of cars now and as soon as I enter a 30mph zone, bang on it goes. That way you can concentrate on the road and not on the speedo. Job done.