You're right! I've been involved in a couple of low-speed bumps in car parks, going at 10mph, people not looking where they are going, that kind of thing. It was AWFUL, dreadfully worrying, and the car was a total mess. In one case, my car even ended up with a visible scratch on the driver's-side door paintwork.
If only I'd have been driving on the road, going at 50mph, like that time when the car skidded on something on the road, and after hitting the edge flipped over and landed on its roof in a muddy ditch. Unlike the dangerous dents and scratches that my car park accidents have left my car with, this little minor incident only left the roof a little bit crushed in, and broke one of the wheels off. Also smashed out all the windows. So there wasn't even any need to call the AA, not like that time somebody opened their door into my car at 0mph and left a little nick in the plastic runner bar.
My only regret is that thanks to the nanny state I couldn't legally have gone at 100mph to make it even safer yet!