By your standard we should all jump off the nearest bridge for living our lives in a way that we can not guarantee that something bad will ever happen to children, our own or someone else´s.
Attempting to guilt trip people for taking part in society is pretty low.
In the UK we have 1 child killed and 37 seriously injured every week.
In the future, little Johnny and grandpa are fishing on the lake, after being driven there by their self-driving car.
"You see that car there Johnny? When I was young, we had to drive these ourselves if we wanted to go fishing. It was great! You felt the wind in your hair, you could go wherever you want, whenever you want, you could make out with your sweetheart in the backseat, you would never feel so free!"
"Whoa, grandpa! Wasn't that dangerous, going so fast without the help of a computer?"
"Oh yeah, millions died".
A better solution would be to set towns and cities up in such a way that the various traffic streams are separated vertically.
Sold my car, moved to Europe, commute by bike. I do rent a car now and then when it can't be avoided and in those scenarios I drive with extreme caution.
The US has a 9/11 every month on the roads and almost nobody there gives a shit. I never understood it.
Besides the homicide rate is not far of a 9/11 every few months is it?
Think about this. If you want to increase your probability of dying in an car accident to about 100%, then you need to drive roughly 100,000,000 miles. Of all the things to worry about, this is pretty low.